----- 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