Title :
Effects of random phase and amplitude errors in optical fiber Bragg gratings
Author :
Feced, Ricardo ; Zervas, Michalis N.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
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.
Keywords :
Bragg gratings; chirp modulation; fluctuations; measurement errors; optical fibre dispersion; optical fibre fabrication; optical fibre filters; optical fibre theory; optical noise; statistical analysis; wavelength division multiplexing; WDM systems; amplitude errors; amplitude fabrication errors; apodized gratings; chirped gratings; coherence length; excess crosstalk; fiber Bragg gratings; fiber dispersion compensation; grating fabrication; optical communications; optical fiber Bragg gratings; optical fibre filters; random phase errors; statistical model; time-delay fluctuations; wavelength-division-multiplexing; Bragg gratings; Chirp; Crosstalk; Fiber gratings; Fluctuations; Optical device fabrication; Optical fiber communication; Optical fibers; Optical filters; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
