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Re: [HSSG] <HSSG-FO> Teleconference Minutes



I would like to propose adding additional data points to your diagram,, one representing DQPSK, with  number of channels =1, baud rate = 50 and one representing Coherent WDM, with number of channels = 1, baud rate =10. (similar points for 80 and 120 Gbit/s)






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From: Dove, Dan [mailto:dan.dove@HP.COM]
Sent: 19 October 2006 18:36
Subject: [HSSG] <HSSG-FO> Teleconference Minutes


Fellow HSSG Members,


The Fiber Optic Adhoc met on 10/18/06 at 9am PDT to discuss Objectives of the AdHoc and plan for our upcoming plenary meeting.




Thomas Fischer - Siemens Germany

Shashi Patel - Foundry

Herb VanDeusen - Gore

Rick Pimpenella - Panduit

Bret Lane - Panduit

Bipin Dhama - Psyoptical

Piers Dawe - Avago

Jugno Ojha - Avago

Lisa Huff - Nexans

Kamal Ali - Gennum

Pete Anslow - Nortel Networks

Peter Dartnell - Brookham

Frank Chang - Vitesse

Arne Alping - Ericsson

Wenbin Jiang - JDSU

Bipin Dama - Sioptical

Chris Cole – Finisar

Allesandro Barbieri – Cisco

Hugh Barass - Cisco




We started off with a monologue by the chair (me) about how I envision the adhoc moving forward. First off, I re-iterated that the objective of the adhoc is to evaluate the technical and economic feasibility of various fiber-optic approaches to higher speed fiber, and that we are not going to provide a recommendation to the HSSG. Then I indicated that due to lack of time, we are unlikely to have an opportunity to take in presentations prior to the plenary, so presentations should be intended for the November meeting. If we meet as an adhoc in November, it will be to organize future meetings and schedules, but presentations should be intended for the larger group.


Regarding our process for moving forward, I offered was that we could create a graphic representation for a given data rate that displayed the relationship between baud rate, number of channels, and data rate with areas where technical and economic feasibility were more likely, and others where T & E were less likely, and from that basis provide direction to the HSSG. There appeared (through lack of an alternative proposal) to be consensus on this approach.






Then we chose to start off the process by excluding areas where we determined reasonable bounds would exist. For example, 100 channels at 1G/s we determined as a reasonable exclusion. So we determined that a set of channel assumptions could be made (note, these channels may be parallel optical or WDM or a combination thereof) and we decided to exclude all data rates other than 80G, 100G, and 120G.


I should note that the adhoc made these exclusions and assumptions with an understanding that the HSSG may disagree and request us to re-address any particular baud or channel number. The primary objective of this exercise was to give the adhoc a direction to proceed until we have an opportunity to narrow down our activity based on HSSG direction.





  • Thomas Fischer - Siemens One cube per data rate per reach and timeframes
  • Hugh Barass - Cisco - number of fibers and numbers of wavelengths not necessarily independent
  • Jugnu - Avago - number of fibers and number of wavelengths are related.
  • Piers 80G, 120G
  • Chris Cole - Finisar 100G
  • Thomas F - Long Haul (40Km) should be considered.
  • Dan D - Short Haul (100m) and a MAN range of (10km) would be basis for study.
  • Thomas F - FEC as an example… needed for long haul and thus excess bandwidth important
  • Dan D - Timeframe assumption (3-4 years)
  • Chris - Should further narrowing be considered? 10x10 and 5x20?
  • Piers 8 and 12 channels for 80 and 120
  • Hugh 1,2,4 channels
  • Peter Anslow 6, 12 for 120
  • Cumulative list of “channels to consider” (1,2,4,5,6,8,10,12)
  • Piers - WDM finds efficiency with number of wavelengths
  • Peter - WDM will be bounded to a given a given number of wavelengths
  • Chris - PO should be kept on the table for 100m study.
  • Rick Pimpenella - Can we eliminate 1 and 2 channels?
  • Should we leave more complex modulation methods on the table or exclude the analysis to NRZ.
  • Hugh - we should not exclude 1,2 at this time.

If I made any errors or omissions on this report, please contact me directly and I will update it for publication on the IEEE802.3 HSSG website.



Chairman IEEE802.3 HSSG FO adhoc
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