Tunable optical delays based on Brillouin dynamic grating in a polarization maintaining fiber

Title
Tunable optical delays based on Brillouin dynamic grating in a polarization maintaining fiber
Authors
송광용이관일윤혁진이상배
Keywords
Optical fibers; Delay lines; Brillouin scattering; Gratings; Polarization
Issue Date
2009-10
Publisher
20th International conference on Optical Fiber Sensors
Citation
VOL 7503, 75037L-1-75037L-4
Abstract
We demonstrate a novel kind of tunable optical delays based on dynamic grating generated by Brillouin scattering in an optical fiber. An axial strain gradient is applied to a 15 m section of a polarization-maintaining fiber, and the Brillouin reflection grating is generated positionselectively by controlling the optical frequencies of Brillouin pump waves. Tunable time delays of up to 132 ns are achieved with an 82 ns Gaussian pulse.
URI
http://pubs.kist.re.kr/handle/201004/36227
Appears in Collections:
KIST Publication > Conference Paper
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