Title :
100% efficient narrow-band acoustooptic tunable reflector using fiber Bragg grating
Author :
Liu, W.F. ; Russell, Philip St J ; Dong, L.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
fDate :
11/1/1998 12:00:00 AM
Abstract :
This paper reports a 100% efficient Bragg-grating-based acoustooptic superlattice modulator in a fiber whose diameter is reduced by HF etching. The acoustically induced reflections, which appear on both sides of the Bragg stop-band, are tunable by altering the acoustic frequency, and have bandwidths corresponding to weak versions of the permanent Bragg grating. These unique properties may lead to important applications in, e.g., reconfigurable wavelength division multiplexing, Q-switching, amplitude modulation, and frequency shifting
Keywords :
acousto-optical modulation; diffraction gratings; etching; mirrors; optical communication equipment; superlattices; tuning; wavelength division multiplexing; Bragg stop-band; Bragg-grating-based acoustooptic superlattice modulator; HF etching; Q-switching; acoustic frequency; acoustically induced reflections; amplitude modulation; fiber Bragg grating; frequency shifting; narrow-band acoustooptic tunable reflector; permanent Bragg grating; reconfigurable wavelength division multiplexing; weak versions; Acoustic reflection; Amplitude modulation; Bandwidth; Bragg gratings; Etching; Frequency; Hafnium; Narrowband; Superlattices; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
