Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 18, Issue 1, Pages 90-101Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/50.818912
Keywords
gratings; noise; optical fiber communication
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This paper studies the influence of random phase and amplitude fabrication errors on the performance of optical filters based on fiber Bragg gratings (FBG's), In particular, we analyze two effects of particular importance for optical communications: the excess crosstalk. induced in apodized gratings commonly used in wavelength-division-multiplexing (WDM) systems, and the time-delay fluctuations that appear in chirped gratings employed to compensate the fiber dispersion. A statistical model is presented to explain these effects in terms of the coherence length, of the grating fabrication procedure.
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