Journal
OPTICS LETTERS
Volume 46, Issue 23, Pages 5802-5805Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.438322
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Funding
- National Key Research and Development Program of China [2018YFB0504500]
- Special Project for Research and Development in Key areas of Guangdong Province [2018B090904001]
- Youth Innovation Promotion Association of the Chinese Academy of Sciences [2020252]
- National Natural Science Foundation of China [61805261]
- Natural Science Foundation of Shanghai [19ZR1464200]
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The study examines the instantaneous response of stimulated Brillouin scattering (SBS) in a fiber system phase modulated by a binary sequence waveform. Both analytically and experimentally investigates the buildup time constant of SBS kinetics. It shows that for a fiber system with SBS buildup time constant within several nanoseconds, the Stokes intensity can be effectively suppressed by implementing a binary sequence phase modulation, exhibiting a damped-oscillation-like trend.
We study the instantaneous response of stimulated Brillouin scattering (SBS) in a fiber system phase modulated by a binary sequence waveform. The buildup time constant of SBS kinetics is investigated analytically and experimentally. A series of binary sequences with adjustable dwell time and sequence period is constructed in order to examine both buildup and suppressing processes for SBS in 15 m short fiber. For a fiber system with SBS buildup time constant within several nanoseconds, the Stokes intensity can be effectively suppressed by implementing a binary sequence phase modulation with a dwell time close to or even less than the buildup time constant. Stokes intensity can be suppressed in several sequence periods, which exhibit a damped-oscillation-like trend. (C) 2021 Optical Society of America
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