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- versus of Fiber Bragg Grating
May 9, 2011, 12:37 pm
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Re: versus of Fiber Bragg Grating
A FBG is only reciprocal if you consider only coupling between the
forward and backward fundamental mode. Umfortunately there is also
coupling to cladding modes. This especially a problem if you are dealing
with chirped grating were the coupling to the backward fundamental mode
and the coupling to cladding modes can spectrally overlap.
Ciao , Frank.
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