Re: [10GMMF] Task 2 and 4 slides for Dec15th - OM3 fibre measurements
Title: Message
Paul,
you
are correct! The Bandwidth diagram is scaled for a length of 300m of a
1300nm transmission. It is just the bandwidth which results from the pulse forms
over the 300m length (large diagram on each slide). In addition to that
bandwidth dependence on the offset radius of the launch I included the
calculated OFL bandwidth of the fiber by a straight line in order to give some
additional information.
A
statement to the EFD values:
I
agree that the lower borders for OM1 and OM2 offset launch should be adjusted to
the same value in order to get no difference between both, my favorite for that
is < 30% for EFD at 6µm.
The
reason of the definition of the center border is to avoid to large power in
the central region because of the possible dip in the center of the fiber. Since
this dip is in general of the same size for OM1 and OM2 fibers it
makes no sense to define different values for the EFD borders in that
area.
Joerg
Joerg,
I believe I've answered
my first question. The OFL line is the raw OFL BW at 1300 nm not
normalized to GHz-km, simply GHz. The value is 0.5GHz-km/0.3km =
1.67GHz. Correct?
Paul
Paul Kolesar
<PKOLESAR@SYSTIMAX.COM>
Sent by: owner-stds-802-3-10gmmf@ieee.org
12/16/2004 05:38 PM
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Subject
| Re: [10GMMF] Task 2 and 4 slides
for Dec15th - OM3 fibre measurements |
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Joerg,
In your and Stefano's contribution to Task2/4
this week you provide bandwidth plots on the right side of three slides
showing the trend with offset. I have two questions:
1. In each of these there is a
horizontal line at about 1.6 GHz-km that appears to be labeled OFL. Is
this the OFL BW at 850 nm?
2. The horizontal axis is labeled "radius of launch
(um)". This can be interpeted in two ways. Is it the encircled
flux radius at perhaps 86% level, or (more likely) the offset radius of the
launch?
Thanks
in advance for the clarifications.
Paul Kolesar
"Joerg-R. Kropp"
<Joerg.Kropp@INFINEON.COM>
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12/15/2004 09:21 AM
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Subject
| Re: [10GMMF] Task 2 and 4 slides
for Dec15th - OM3 fibre measurements |
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Jonathan and
all,
please
find enclosed further simulations about the OM3 transmission and our proposal
based on that simulations.
I hope it will be possible to discuss that today.
I
have to cut the presentation into two because of the 100k limit.
Joerg-R.
Kropp
Infineon Technologies Fiber Optics
GmbH
MOD CE
Dr. Joerg-R.
Kropp
Senior Staff Expert
Wernerwerkdamm 16
D-13629 Berlin /
Germany
Phone -49-30-85400-4918
Fax -49-30-85400-4900
Mail joerg.kropp@infineon.com
[attachment "OM3 Fiber EFD PIED1.pdf" deleted by Paul
F Kolesar/CommScope]