RE: [802.3ae] Bad idea...not including FP laser in PMD
Norman:
To echo Rich and Bob's sentiment, it is clear that our current crop of
PMDs addresses all significant market spaces and our agreed objectives,
and we have even seen these spaces blurred by performance above and
beyond the specification for each PMD:
* Production 850 nm serial PMDs have been shown operating at 1 km
over multimode fiber (standard requires 65 m operation; see OFC
announcements for this result)
* Production 1310 nm serial PMDs have been shown operating at 40
km over single mode fiber (see technical feasibility presentations for
this result)
* CWDM 1310 nm PMDs have operated as advertised, on 300 m of
installed multimode fiber (see technical feasibility presentations for
this result)
* Production 1550 nm serial PMDs are commonly deployed for
distances of 100 km (and more) over single mode fiber (see numerous
product specs for this result)
The PMD set we picked was complete, and the PMDs are overlapping more
than we could probably have guessed in their performance. The use of an
FP laser does not address a new application space that we forgot about,
it represents a technology specific solution that is already covered.
Cheers,
Dave
------
David Kabal
Sr. Technology Planner
Picolight
e-mail: david.kabal@xxxxxxxxxxxxx
Main: 303-530-3189 x7498
Direct: 303-527-7498
Fax: 303-527-4961
-----Original Message-----
From: owner-stds-802-3-hssg@xxxxxxxxxxxxxxxxxx
[mailto:owner-stds-802-3-hssg@xxxxxxxxxxxxxxxxxx] On Behalf Of Taborek,
Rich
Sent: Friday, March 29, 2002 6:47 PM
To: Norman Kwong; Grow, Bob; stds-802-3-hssg@xxxxxxxx
Subject: RE: [802.3ae] Bad idea...not including FP laser in PMD
Norman,
I agree with Bob's response from a process perspective and would like to
take this opportunity to address the market issues which you raise.
The IEEE P802.3ae draft standard currently provides multiple solutions
for short reach links. Depending on your definition of "short", either
850 nm VCSEL, 1310 nm VCSEL, 1310 nm DFB or 1310 nm CWDM solutions
adequately cover all customer distance and fiber type requirements with
significant overlap. I'm unaware of any significant change since this
decision, but I have seen a huge discounting of highly integrated 10G
optical module solutions relative to the timeframe of the decision.
Looking into the future, vendors are already addressing short reach
links with more compact optical module solutions which will adequately
and economically meet customer requirements. I beg to differ with you on
your statement that: "Customers don't care how many PMDs". This is not
what I've heard from any system supplier at IEEE 802.3ae Task Force
meetings.
Lastly, I don't perceive that anything is "broken" with the current
specification (of PMDs). This is usually the impetus for change. In my
view, the PMDs specified in IEEE P802.3ae adequately and economically
allow customers to deploy 10GbE equipment.
If you believe that you have enough support for a Call for Interest for
a 10GbE 1310 nm FP PMD, the call must be initiated through IEEE 802.3,
not 802.3ae.
Best Regards,
Rich
---------------------------------------------------------
Richard Taborek Sr. Intel Corporation
XAUI Sherpa Intel Communications Group
3101 Jay Street, Suite 110 Optical Strategic Marketing
Santa Clara, CA 95054 Santa Clara Design Center
408-496-3423 JAY1-101
Cell: 408-832-3957 mailto:rich.taborek@xxxxxxxxx
Fax: 408-486-9783 http://www.intel.com
<http://www.intel.com/>
-----Original Message-----
From: Norman Kwong [mailto:nkwong@xxxxxxxxxxxxxxx]
Sent: Friday, March 29, 2002 11:27 AM
To: Grow, Bob; stds-802-3-hssg@xxxxxxxx
Subject: Re: [802.3ae] Bad idea...not including FP laser in PMD
Bob,
Thanks for your quick response. If it is a right thing to do, it never
be too late. Imagine if majority of the short reach link deployed in
next few years are using FP lasers and it is not covered by the
standard, it will go down to the history book that the committee did not
do a good job of serving the industry. Since the committee discussed
and make the decision a long time ago, many things have been changed.
Many technologies promised to deliver low cost products have not done it
yet for variety of reasons. FP lasers has been available and always be
available to serve the industry. There are concern of too many PMDs in
the standard, the keys is how many PMD are low cost and can deliver in
volume. Customers don't care how many PMDs, all they care is how they
can get parts that can do the job, cheap and reliable. I'd urge the
committee should initiate a call for interest for this topic. Thanks
Norman Kwong
CTO
Archcom Technology
Office: 626-969-0681 x121
1335 W. Foothill Blvd.
Azusa, CA 91702
----- Original Message -----
From: Grow, Bob <mailto:bob.grow@xxxxxxxxx>
To: 'Norman <mailto:nkwong@xxxxxxxxxxxxxxx> Kwong' ;
stds-802-3-hssg@xxxxxxxx
Sent: Thursday, March 28, 2002 4:58 PM
Subject: RE: [802.3ae] Bad idea...not including FP laser in PMD
Norman:
It is too late to add major functionality you describe to the 802.3ae
project. As you point out, the committee discussed the topic and made
its decision a long time ago. The P802.3ae draft has completed Working
Group and is in the final stages of Sponsor ballot. The addition you
propose is outside the scope of the current Sponsor recirculation ballot
and therefore should not be considered by the P802.3ae Task Force.
Bob Grow
Chair, IEEE 802.3 Working Group
Intel, EC2-101
13290 Evening Creek Drive
San Diego, CA 92128
phone: 858-391-4622
mobile: 858-705-1829
fax: 858-391-4580
-----Original Message-----
From: Norman Kwong [mailto:nkwong@xxxxxxxxxxxxxxx]
Sent: Thursday, March 28, 2002 2:23 PM
To: stds-802-3-hssg@xxxxxxxx
Cc: Norman Kwong
Subject: [802.3ae] Bad idea...not including FP laser in PMD
Dear 802.3ae members
I understand that this is an old topic, but I still strongly
believe that it is a bad idea not to include 1310 nm Fabry-Perot (FP)
lasers in the PMD. Let me re-cap some of the advantages of FP lasers:
1. Low cost comparing to DFB lasers: high yield single-growth
wafer process, less sensitive to back reflection that eliminates the
need for isolator in package. (1.3 VCSEL yield/cost is not clear now,
therefore it is hard to compare.)
2. Edge emitting lasers (FP and DFB) are more mature technology
and have been deployed in market for many years. Both lasers are
available today through multiple vendors.
3. FP laser can handle at least 0 to 2km (some test even indicate
7km is possible). And majority of the 10G Ethernet applications fall
into this range.
4. Some companies are shipping transceiver/transponder products
using 1310 FP lasers today, but unfortunately they are being treated as
non-802.3ae standard products.
The current 1310 PMD specification has a 30 dB SMSR spec that prohibits
the use of FP lasers. I believe that it is to the best interest of our
industry to standardize a PMD based on 1310 nm FP lasers. If there is a
way to start a new project or modify the current specifications to
include FP lasers, I'll love to lead an effort on it.
Norman Kwong
CTO
Archcom Technology
Office: 626-969-0681 x121
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<div class=3DSection1>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Norman</span></font><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>:</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>To echo Rich and Bob’s =
sentiment, it
is clear that our current crop of PMDs addresses all significant market =
spaces
and our agreed objectives, and we have even seen these spaces blurred by
performance above and beyond the specification for each =
PMD:</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<ul type=3Ddisc>
<li class=3DMsoNormal style=3D'color:navy'><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Production 850 nm =
serial PMDs
have been shown operating at 1 km over multimode fiber (standard =
requires 65
m operation; see OFC announcements for this =
result)</span></font></li>
<li class=3DMsoNormal style=3D'color:navy'><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Production 1310 nm =
serial PMDs
have been shown operating at 40 km over single mode fiber (see =
technical feasibility
presentations for this result)</span></font></li>
<li class=3DMsoNormal style=3D'color:navy'><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>CWDM 1310 nm PMDs have =
operated
as advertised, on 300 m of installed multimode fiber (see technical =
feasibility
presentations for this result)</span></font></li>
<li class=3DMsoNormal style=3D'color:navy'><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Production 1550 nm =
serial PMDs
are commonly deployed for distances of 100 km (and more) over =
single mode
fiber (see numerous product specs for this =
result)</span></font></li>
</ul>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>The PMD set we picked was complete, =
and
the PMDs are overlapping more than we could probably have guessed in =
their
performance. The use of an FP laser does not address a new application =
space
that we forgot about, it represents a technology specific solution that =
is already
covered.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Cheers,<br>
Dave</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>------</span></fo=
nt></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><b><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'>David Kabal</span></font></b></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><i><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy;
font-style:italic'>Sr. Technology Planner</span></font></i></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Picolight</span><=
/font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D1 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:8.0pt;font-family:Arial;color:navy'>e-mail: <a
href=3D"mailto:david.kabal@xxxxxxxxxxxxx";>david.kabal@xxxxxxxxxxxxx</a></=
span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D1 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:8.0pt;font-family:Arial;color:navy'>Main</span></font>=
<font
size=3D1 color=3Dnavy face=3DArial><span =
style=3D'font-size:8.0pt;font-family:Arial;
color:navy'>: 303-530-3189 x7498</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D1 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:8.0pt;font-family:Arial;color:navy'>Direct:
303-527-7498</span></font></p>
<p class=3DMsoAutoSig><font size=3D1 color=3Dnavy face=3DArial><span =
style=3D'font-size:
8.0pt;font-family:Arial;color:navy'>Fax: 303-527-4961</span></font></p>
</div>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b>
owner-stds-802-3-hssg@xxxxxxxxxxxxxxxxxx
[mailto:owner-stds-802-3-hssg@xxxxxxxxxxxxxxxxxx] <b><span =
style=3D'font-weight:
bold'>On Behalf Of </span></b>Taborek, Rich<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> </span></font><font =
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>Friday, March
29, 2002</span></font><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma'> </span></font><font size=3D2 face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>6:47 =
PM</span></font><font size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'><br>
<b><span style=3D'font-weight:bold'>To:</span></b> Norman Kwong; Grow, =
Bob;
stds-802-3-hssg@xxxxxxxx<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: [802.3ae] =
Bad
idea...not including FP laser in PMD</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dblue face=3DArial><span
=
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>Norman</span></fo=
nt><font
size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:blue'>,</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dblue face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>I agree with =
Bob's
response from a process perspective and would like to take this =
opportunity to
address the market issues which you raise. </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dblue face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>The IEEE =
P802.3ae draft
standard currently provides multiple solutions for short reach links. =
Depending
on your definition of "short", either 850 nm VCSEL, 1310 nm =
VCSEL,
1310 nm DFB or 1310 nm CWDM solutions adequately cover all customer =
distance
and fiber type requirements with significant overlap. I'm unaware of any
significant change since this decision, but I have seen a huge =
discounting of
highly integrated 10G optical module solutions relative to the timeframe =
of the
decision. Looking into the future, vendors are already addressing short =
reach
links with more compact optical module solutions which will adequately =
and
economically meet customer requirements. I beg to differ with you on =
your
statement that: "Customers don't care how many PMDs". This is =
not
what I've heard from any system supplier at IEEE 802.3ae Task Force =
meetings.</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dblue face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>Lastly, I don't =
perceive
that anything is "broken" with the current specification (of =
PMDs).
This is usually the impetus for change. In my view, the PMDs specified =
in IEEE
P802.3ae adequately and economically allow customers to deploy 10GbE =
equipment.</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dblue face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>If you believe =
that you
have enough support for a Call for Interest for a 10GbE 1310 nm FP PMD, =
the
call must be initiated through IEEE 802.3, not =
802.3ae.</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3D"Times New Roman"><span
style=3D'font-size:10.0pt'><br>
Best Regards,<br>
Rich<br>
&=
nbsp; &n=
bsp; &nb=
sp;<br>
---------------------------------------------------------<br>
Richard Taborek
Sr. &nbs=
p;
Intel Corporation<br>
XAUI
Sherpa &=
nbsp;
Intel Communications Group<br>
</span></font><font size=3D2><span style=3D'font-size:10.0pt'>3101 Jay =
Street,
Suite 110</span></font><font size=3D2><span =
style=3D'font-size:10.0pt'>
Optical Strategic Marketing<br>
</span></font><font size=3D2><span style=3D'font-size:10.0pt'>Santa =
Clara</span></font><font
size=3D2><span style=3D'font-size:10.0pt'>, </span></font><font =
size=3D2><span
style=3D'font-size:10.0pt'>CA</span></font><font size=3D2><span =
style=3D'font-size:
10.0pt'> </span></font><font size=3D2><span =
style=3D'font-size:10.0pt'>95054</span></font><font
size=3D2><span =
style=3D'font-size:10.0pt'> &nbs=
p;
</span></font><font size=3D2><span style=3D'font-size:10.0pt'>Santa =
Clara</span></font><font
size=3D2><span style=3D'font-size:10.0pt'> </span></font><font =
size=3D2><span
style=3D'font-size:10.0pt'>Design</span></font><font size=3D2><span
style=3D'font-size:10.0pt'> </span></font><font size=3D2><span =
style=3D'font-size:
10.0pt'>Center</span></font><font size=3D2><span =
style=3D'font-size:10.0pt'><br>
408-496-3423 &=
nbsp; &n=
bsp; &nb=
sp;
JAY1-101<br>
Cell: 408-832-3957 =
<a
href=3D"mailto:rich.taborek@xxxxxxxxx";>mailto:rich.taborek@xxxxxxxxx</a><=
br>
Fax:
408-486-9783 &=
nbsp;
<a href=3D"http://www.intel.com/"; =
target=3D"_blank">http://www.intel.com</a></span></font>
</p>
</div>
<blockquote style=3D'border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'=
>
<p class=3DMsoNormal =
style=3D'margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in'><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Norman Kwong
[mailto:nkwong@xxxxxxxxxxxxxxx]<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> </span></font><font =
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>Friday, March
29, 2002</span></font><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma'> </span></font><font size=3D2 face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>11:27 =
AM</span></font><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'><br>
<b><span style=3D'font-weight:bold'>To:</span></b> Grow, Bob;
stds-802-3-hssg@xxxxxxxx<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Re: [802.3ae] =
Bad
idea...not including FP laser in PMD</span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Bob,</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Thanks for your quick
response. If it is a right thing to do, it never be too =
late.
Imagine if majority of the short reach link deployed in next few =
years are
using FP lasers and it is not covered by the standard, it will go down =
to the
history book that the committee did not do a good job of serving the
industry. Since the committee discussed and make the decision a =
long time
ago, many things have been changed. Many technologies promised to =
deliver low
cost products have not done it yet for variety of reasons. FP
lasers has been available and always be available to serve the
industry. There are concern of too many PMDs in the standard, the =
keys is
how many PMD are low cost and can deliver in volume. Customers =
don't care
how many PMDs, all they care is how they can get parts that can do the =
job,
cheap and reliable. I'd urge the committee should =
initiate a
call for interest for this topic. Thanks</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Norman =
Kwong</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>CTO</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Archcom =
Technology</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Office: 626-969-0681 =
x121</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>1335 </span></font><font =
size=3D2
face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>W. =
Foothill Blvd.</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Azusa</span></font><font =
size=3D2
face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>, =
</span></font><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>CA</span></font><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> </span></font><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>91702</span></font></p>
</div>
<blockquote style=3D'border:none;border-left:solid black =
1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'=
>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>----- Original Message =
----- </span></font></p>
</div>
<div style=3D'font-color:black'>
<p class=3DMsoNormal =
style=3D'margin-left:.5in;background:#E4E4E4'><b><font size=3D2
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>From:</span=
></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> <a
href=3D"mailto:bob.grow@xxxxxxxxx"; title=3D"bob.grow@xxxxxxxxx">Grow, =
Bob</a> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>To:</span><=
/font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> <a
href=3D"mailto:nkwong@xxxxxxxxxxxxxxx"; =
title=3D"nkwong@xxxxxxxxxxxxxxx">'Norman
Kwong'</a> ; <a href=3D"mailto:stds-802-3-hssg@xxxxxxxx";
title=3D"stds-802-3-hssg@xxxxxxxx">stds-802-3-hssg@xxxxxxxx</a> =
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>Sent:</span=
></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> </span></font><font =
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>Thursday, March
28, 2002</span></font><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font><font size=3D2 face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>4:58 PM</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>Subject:</s=
pan></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> RE:
[802.3ae] Bad idea...not including FP laser in PMD</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dblue face=3DArial><span
=
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>Norman</span></fo=
nt><font
size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:blue'>:</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dblue face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>It is too =
late to
add major functionality you describe to the 802.3ae project. As =
you point
out, the committee discussed the topic and made its decision a long time
ago. The P802.3ae draft has completed Working Group and is in the =
final
stages of Sponsor ballot. The addition you propose is outside the =
scope
of the current Sponsor recirculation ballot and therefore should not be
considered by the P802.3ae Task Force.</span></font></p>
</div>
<div>
<p style=3D'margin-left:.5in'><font size=3D2 color=3Dblue =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>Bob =
Grow <br>
Chair, IEEE 802.3 Working Group</span></font></p>
<p style=3D'margin-left:.5in'><font size=3D2 color=3Dblue =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>Intel, EC2-101 =
<br>
</span></font><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;color:blue'>13290 Evening Creek =
Drive</span></font><font
size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:blue'> <br>
</span></font><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;color:blue'>San Diego</span></font><font size=3D2 =
color=3Dblue
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>, =
</span></font><font
size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:blue'>CA</span></font><font size=3D2 color=3Dblue =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'> =
</span></font><font
size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:blue'>92128</span></font><font size=3D2 color=3Dblue =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'> =
</span></font></p>
<p style=3D'margin-left:.5in'><font size=3D2 color=3Dblue =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>phone: =
858-391-4622 <br>
mobile: 858-705-1829 <br>
fax: 858-391-4580 </span></font></p>
</div>
<blockquote =
style=3D'margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<p class=3DMsoNormal =
style=3D'margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in'><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Norman Kwong
[mailto:nkwong@xxxxxxxxxxxxxxx]<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> </span></font><font =
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>Thursday, March
28, 2002</span></font><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma'> </span></font><font size=3D2 face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>2:23 =
PM</span></font><font size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'><br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
stds-802-3-hssg@xxxxxxxx<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> Norman Kwong<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> [802.3ae] Bad =
idea...not
including FP laser in PMD</span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>Dear 802.3ae members</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> I understand =
that this
is an old topic, but I still strongly believe that it is a bad idea not =
to
include 1310 nm Fabry-Perot (FP) lasers in the PMD. Let me re-cap =
some of
the advantages of FP lasers:</span></font></p>
<p class=3DMsoNormal =
style=3D'margin-left:1.0in;text-indent:-.25in'><font size=3D2
face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>1.<font =
size=3D1
face=3D"Times New Roman"><span style=3D'font:7.0pt "Times New =
Roman"'>
</span></font></span></font><font face=3DArial><span =
style=3D'font-family:Arial'>Low
cost comparing to DFB lasers: high yield single-growth wafer process, =
less
sensitive to back reflection that eliminates the need for isolator in
package. (1.3 VCSEL yield/cost is not clear now, therefore it is =
hard to
compare.)</span></font><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=3DMsoNormal =
style=3D'margin-left:1.0in;text-indent:-.25in'><font size=3D2
face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>2.<font =
size=3D1
face=3D"Times New Roman"><span style=3D'font:7.0pt "Times New =
Roman"'>
</span></font></span></font><font face=3DArial><span =
style=3D'font-family:Arial'>Edge
emitting lasers (FP and DFB) are more mature technology and have been =
deployed
in market for many years. Both lasers are available today through
multiple vendors.</span></font><font size=3D2 face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial'> </span></font></p>
<p class=3DMsoNormal =
style=3D'margin-left:1.0in;text-indent:-.25in'><font size=3D2
face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>3.<font =
size=3D1
face=3D"Times New Roman"><span style=3D'font:7.0pt "Times New =
Roman"'>
</span></font></span></font><font face=3DArial><span =
style=3D'font-family:Arial'>FP
laser can handle at least 0 to 2km (some test even indicate 7km is =
possible).
And majority of the 10G Ethernet applications fall into this =
range.</span></font><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=3DMsoNormal =
style=3D'margin-left:1.0in;text-indent:-.25in'><font size=3D2
face=3DArial><span style=3D'font-size:10.0pt;font-family:Arial'>4.<font =
size=3D1
face=3D"Times New Roman"><span style=3D'font:7.0pt "Times New =
Roman"'>
</span></font></span></font><font face=3DArial><span =
style=3D'font-family:Arial'>Some
companies are shipping transceiver/transponder products using 1310 FP =
lasers
today, but unfortunately they are being treated as non-802.3ae standard
products.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>The current 1310 PMD specification has a 30 =
dB SMSR
spec that prohibits the use of FP lasers. I believe that it is to =
the
best interest of our industry to standardize a PMD based on 1310 nm FP
lasers. If there is a way to start a new project or modify the =
current
specifications to include FP lasers, I'll love to lead an effort on =
it.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>Norman Kwong</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>CTO</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>Archcom Technology</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>Office: 626-969-0681 x121</span></font></p>
</div>
</blockquote>
</blockquote>
</blockquote>
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