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Dear
all,
in the
last telco we discussed the possible influence of the various laser sources on
the polarization effect in multimode transmission. Therefore we performed some
some experiments on that subject.
We recorded the patterns for two orthogonal
input polarizations for three 10G-lasers: DFB,VCSEL and
FP.
For
the transmission we used the "kink fiber" over a distance of 270m with
a controlled offset launch in the area of the
kink.
The
result shows similar patterns for the DFB and VCSEL but slightly different
ones for the FP (maybe caused by the larger number of wavelength). The general
effect seems to be of similar size for the three sources.
Some
minutes ago I sent to Piers a short presentation of the results and hope it
is enough time to upload it for the telco today.
Joerg
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