目前，利用真实可饱和吸收体的锁模技术以及基于非线性光环形镜(NOLM)、非线性放大环形镜(NALM)和非线性偏振旋转效应(Nonlinear polarization rotation,NPR)的人工可饱和吸收体锁模技术是被动锁模光纤激光器中最常用的两种方式...
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Thirdly, the equations of NALM power transmission are amended including the nonlinear polarization evolution (NPE) induced by nonlinear birefringence at high input power.
分析了强光条件下光纤非线性双折射及引起的偏振演化（NPE）效应，据此对NALM环功率传输特性基本表达式进行了修正。
The fiber cavity with a NALM has a tendency to provide pulse shaping effect with nonlinearity increasing in the NALM, and the nanosecond square pulse is generated by the pulse shaping effect.
数值计算结果表明，当NALM内的非线性增大时，呈现出对脉冲整形的效应，从而导致纳秒方波的产生。
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