分析了相位偏置和光纤的色散对锁模机制的影响，获得了产生稳定超短光脉冲的条件。

The effects of phase bias and group velocity dispersion on mode locking mechanism are analyzed. The operating conditions for stable short pulse generation are obtained.

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实验比较了SESAM器件在平凹稳定腔和平凸非稳腔激光器中实现被动锁模的差异，并给出理论解释。

The differences of the passive mode-locking by the SESAM in the plane-concave stable resonator and the plane-convex unstable resonator lasers were experimentally compared and reasonably explained.

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为了获得稳定的谐波锁模脉冲，分析了有理数谐波锁模的理论和非线性放大环镜的传输特性。

To achieve a steady harmonic mode-locked pulse (HMLP), the theory of rational harmonic mode-locking and the transmission characteristics of a nonlinear amplifying loop mirror were analyzed.

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