----- Original Message -----
Sent:
Saturday, July 31, 2004 10:45 AM
Subject:
[10GMMF] Notes from 1st TP2 working group call,
7/30/04
Tom Lindsay, Norm Swenson, Bharath
Jagannathan; ClariPhy
Nick Weiner, Ben Wilcox;
PhyWorks
Sudeep Bhoja, John Jaeger, Jonathan
King; Big Bear
Yu Sun; Optium (correction from 1st
release of minutes)
Discussions were based on Tom's emails
of 7/29 (agenda for call) and 7/25 (project outline), as well as
lindsay_01_0704. The agenda from the 7/29 email was
approved.
·
A succinct statement is required. Action to Tom
to draft. Cost is a motivation. Per 7/25 email, purpose is to gather and
study cost, test methods, and penalty information and make a proposal
to the LRM task force in September. I expect refinement will continue beyond
that time. Any work from this group may be traded against work from the
channel modeling group or the new TP3 group.
·
Work and proposal must include test methods. An
important goal is that test methods should be simple and practical to keep
test cost low.
·
This group's charter does not include launch
geometries. That work is being done as part of the channel modeling. This
group's work is focused on the time and frequency domain aspects of signals
(masks, edge rates, etc.).
·
The main LRM reflector is to be used.
The high-level task list (per 7/29
email) was approved. Task order was discussed. Cost information must be
shared early so that experimental and simulation work know where to focus.
Test metrics must be proposed early to also support experimental and
simulation work.
·
Propose/develop TP2 test metrics - probably
required anyway; see slide 14 of lindsay_01_0704 for initial ideas
·
Simulations - penalty and test metric results
vs. signal specs/characteristics
·
Experimental work - penalty and test metric
results vs. signal specs/characteristics
·
Develop cost models - relative
costs vs. signal specs/characteristics
·
Present tradeoff data and recommendations
The scope of study must include
anything that both affects cost and TP2 signaling properties. This includes
laser drivers, driver to laser coupling and packaging, laser chips, and
optical power coupling efficiency (and electrical
drive).
Task details need development by the
volunteers doing the work, although some thoughts may be available in
lindsay_01_0704. Some tasks require inputs from other tasks, such
as
·
Experimental work must be guided by where cost
benefits may lie.
·
Simulation work must also be guided by where
cost benefits may lie but also by the practical range of parameter values
determined by limits or availability of actual hardware.
·
Both experimental and simulation work require
test metrics/methods to compare their tracking with penalty results.
In general, as folks develop details
for progressing their task(s), please determine what information you need
from other parts of this group or to share within the same task.
This is critical to bound and focus the
work.
·
Cost
o Matt
Traverso
o John
Ewen
·
TP2 test methods
o Tom
Lindsay
o Jens
Fiedler
o Matt
Traverso
·
Simulations
o Tom
Lindsay
o Norm
Swenson
o Jens
Fiedler
o Intel
(not on the call, but I know they are working on this)
·
Experiments
o John
Ewen
o Badri
Gomatam
o Intel
(not on the call, but I know they are working on this)
More volunteers are requested! Please
let me know what you are interested in supporting. There were several folks
that indicated interested in this work that were not able to make this
call.
·
Since we are trying to support the September
interim, we need to know its dates as soon as possible.
·
Calls will be held ~weekly.
·
Next call will be Friday 8/6 at 9 AM
PDT. Same numbers.
Tom Lindsay
ClariPhy
Communications