Re: SJTP: Minutes from 08-May meeting
Mike,
Thanks for raising the issue and seeing it through. I'll
admit I'm not familiar enough with the issue to understand
the ramifications of one method over another. However, I
trust that if you and your peers are satisfied, then I
should be.
Thanks,
Ben
"Hackert, Michael J" wrote:
>
> Ben,
>
> Looks like the transceiver manufacturers are willing to sign up for modulated encircled flux measurements. Although I still do not believe anyone has proven that the measurement can be done as described in FOTP 203, there is a high enough degree of confidence from our calculations and theoretical expectations that there should be no issue.
>
> So that said, I withdraw any objection.
>
> Thank you for your patience and opportunity to comment.
>
> mike
>
> > ----------
> > From: Brown Gair D DLVA[SMTP:BrownGD@NSWC.NAVY.MIL]
> > Sent: Wednesday, May 09, 2001 9:02 AM
> > To: 'Hackert, Michael J'
> > Subject: RE: SJTP: Minutes from 08-May meeting
> >
> > Mike,
> >
> > I agree with your comment to Ben to a point. Our experience with LEDs says
> > that modulation conditions will not matter. I'm really not sure what we
> > have seen with FP type lasers. We don't have much experience with VCSELS
> > yet. I am taking from your comments that you have seen the same with VCSELS
> > as with LEDs. However, I suspect that if linewidth becomes smaller, the
> > lasers will become more sensitive to drive conditions. The IEEE documents
> > do not contain any restrictions on minimum linewidth.
> >
> > Gair
> >
> > ***********************************************************************
> > Naval Surface Warfare Center browngd@nswc.navy.mil
> > Code B35 phone: 540-653-1579
> > 17320 Dahlgren Road fax: 540-653-8673
> > Building 1500 Room 107
> > Dahlgren, VA 22448-5100
> >
> >
> >
> > -----Original Message-----
> > From: Hackert, Michael J [mailto:HackertMJ@corning.com]
> > Sent: Tuesday, May 08, 2001 5:40 PM
> > To: serialpmd; 'Ben Brown'
> > Subject: RE: SJTP: Minutes from 08-May meeting
> >
> >
> >
> > Ben,
> >
> > Hi. Having only scanned minutes, I hate to sound ignorant. However, I was
> > wondering if there was really a need to have the source modulated during the
> > encircled flux measurements as implied in your slide 3.
> >
> > TIA 2.2.1 never did any experimentation with modulation of the transceivers
> > during our development process. I have done some tests myself which says
> > that the difference if any is hard to detect. Not being a manufacturer of
> > transceivers and lacking that expertise, I will concede if the experts say
> > that it is necessary. However, I am reluctant to add a requirement if it is
> > really only being included as a nice to have.
> >
> > mike
> >
> >
> >
> > > Mike Hackert
> > >
> > > Measurement Project Engineer
> > > Corning Incorporated, SP-BN, Corning, New York 14831
> > > telephone: (607) 974-3063 (fax: 5983)
> > > mailto:HACKERTMJ@CORNING.COM
> > >
> > >
> > > ----------
> > > From: Ben Brown[SMTP:bbrown@amcc.com]
> > > Sent: Tuesday, May 08, 2001 4:19 PM
> > > To: serialpmd
> > > Subject: SJTP: Minutes from 08-May meeting
> > >
> > > <<File: minutes_010508.txt>><<File: SJTP_update_010508.ppt>>
> > >
> > > All,
> > >
> > > Thanks for your participation. Attached are the minutes from
> > > today's conference call. Also, attached is an updated copy of
> > > the presentation. Please review before Thursday evening as I
> > > intend to make it available to the task force at that time.
> > >
> > > Thanks,
> > > Ben
> > >
> > > --
> > > -----------------------------------------
> > > Benjamin Brown
> > > AMCC
> > > 2 Commerce Park West
> > > Suite 104
> > > Bedford NH 03110
> > > 603-641-9837 - Work
> > > 603-491-0296 - Cell
> > > 603-626-7455 - Fax
> > > 603-798-4115 - Home Office
> > > bbrown@amcc.com
> > > -----------------------------------------
> > >
> >
--
-----------------------------------------
Benjamin Brown
AMCC
2 Commerce Park West
Suite 104
Bedford NH 03110
603-641-9837 - Work
603-491-0296 - Cell
603-626-7455 - Fax
603-798-4115 - Home Office
bbrown@amcc.com
-----------------------------------------