Title :
Dynamic digital holographic wavelength filtering
Author :
Parker, Michael C. ; Cohen, Adam D. ; Mears, Robert J.
Author_Institution :
Fujitsu Telecommun. Europe Ltd. Res., Colchester, UK
fDate :
7/1/1998 12:00:00 AM
Abstract :
This paper describes the theory and results of a new generic technology for use in optical telecommunications and wavelength division multiplexing (WDM): dynamic digital holographic wavelength filtering. The enabling component is a polarization-insensitive ferroelectric liquid crystal (FLC) spatial light modulator (SLM) in conjunction with a highly wavelength-dispersive fixed diffractive element. The technology has been used to perform demultiplexing of single or multiple WDM signals, dynamic erbium doped fiber amplifier (EDFA) gain equalization and channel management, and used to tune an erbium-doped fiber laser (EDFL) functioning as a high power, very narrow linewidth WDM source
Keywords :
ferroelectric liquid crystals; holography; laser tuning; liquid crystal devices; optical communication equipment; optical filters; spatial light modulators; wavelength division multiplexing; EDFA gain equalization; WDM; channel management; demultiplexing; dynamic digital holographic wavelength filtering; dynamic erbium doped fiber amplifier; erbium-doped fiber laser tuning; generic technology; high power very narrow linewidth WDM source; highly wavelength-dispersive fixed diffractive element; multiple WDM signals; optical telecommunications; polarization-insensitive ferroelectric liquid crystal FLC spatial light modulator; single WDM signals; wavelength division multiplexing; Digital filters; Ferroelectric materials; Filtering theory; Holographic optical components; Holography; Optical fiber filters; Optical fiber polarization; Optical filters; Optical modulation; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
