Title :
Dammann fiber Bragg gratings and phase-only sampling for high channel counts
Author :
Rothenberg, J.E. ; Li, H. ; Li, Y. ; Popelek, J. ; Sheng, Y. ; Wang, Y. ; Wilcox, R.B. ; Zweiback, J.
Author_Institution :
Phaethon Commun., Fremont, CA, USA
Abstract :
Fiber Bragg gratings with phase-only superstructure ("sampling") are shown to greatly increase the reflectivity of large channel count designs. Grating fabrication is facilitated by the standard mask side-writing technique, where the entire sampling pattern is included in the phase mask. A novel phase sampling design based on binary Dammann gratings as well as continuous phase sampling functions is demonstrated and exhibits excellent channel-to-channel uniformity.
Keywords :
Bragg gratings; optical communication equipment; optical fibre dispersion; optical fibre fabrication; optical tuning; reflectivity; wavelength division multiplexing; Dammann fiber Bragg gratings; binary Dammann gratings; channel-to-channel uniformity; continuous phase sampling; dispersion compensation; grating fabrication; index modulation; interleaved segments; large channel count designs; phase mask; phase-only sampling; phase-only superstructure; reflectivity; standard mask side-writing; uniform grating; wavelength division multiplexing; Amplitude modulation; Bragg gratings; Fiber gratings; Frequency; Optical device fabrication; Optical fiber communication; Optical fiber devices; Reflectivity; Sampling methods; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.801054
