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.

中文翻译：

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二元序列相位调制短光纤系统中SBS过程的瞬时响应与抑制

我们研究了在由二进制序列波形调制的光纤系统相位中受激布里渊散射 (SBS) 的瞬时响应。分析和实验研究了 SBS 动力学的建立时间常数。构建了一系列具有可调驻留时间和序列周期的二进制序列，以检查 15 m 短纤维中 SBS 的累积和抑制过程。对于 SBS 建立时间常数在几纳秒内的光纤系统，可以通过实现停留时间接近甚至小于建立时间常数的二进制序列相位调制来有效抑制斯托克斯强度。斯托克斯强度可以在几个序列周期中被抑制，呈现出类似阻尼振荡的趋势。