Tunable optical delays based on Brillouin dynamic grating in optical fibers
- Tunable optical delays based on Brillouin dynamic grating in optical fibers
- 송광용; 이관일; 이상배
- Issue Date
- Optics express
- VOL 17, NO 12, 10344-10349
- 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 polarizationmaintaining
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
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