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Amplified noise nonstationarity in a mode-locked laser based on nonlinear polarization rotation

机译:基于非线性极化旋转的锁模激光器中的放大噪声非间转性

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摘要

Beat note measurements between a mode-locked (ML) and a continuous-wave laser, as well as between two ML sources, were used to demonstrate that the sub-threshold, cavity filtered, amplified spontaneous emission is not stationary, even when a fast mode-locking mechanism, such as nonlinear polarization rotation, is used to generate short pulses. A relatively small gain modulation of a few percent created by high-intensity pulses can produce a significant modulation of the amplified noise once synchronously accumulated over several cavity round-trips, even if the repetition rate is faster than the gain dynamics. (C) 2019 Optical Society of America
机译:击败模式锁定(ml)和连续波激光器之间的测量,以及两个ml源之间,用于证明子阈值,腔滤波,扩增的自发发射并不静静,即使快速 模式锁定机构,例如非线性偏振旋转,用于产生短脉冲。 通过高强度脉冲产生的几个百分比的相对较小的增益调制可以产生一旦在多个腔循环上同步累积的放大噪声的显着调制,即使重复速率比增益动态速度快。 (c)2019年光学学会

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