基于脉冲强度相关调制的新型主动锁模激光器

提出了一种基于脉冲自身强度相关调制的新型全保偏主动锁模激光器。利用脉冲强度前馈结构结合双驱动强度调制器,实现与脉冲自身强度相关的幅度调制,形成两种完全不同的稳定锁模状态。理论研究了脉冲前馈在主动锁模中的作用,实验验证了脉冲前馈在10GHz谐波锁模时抑制了超模噪声,在基频锁模时可饱吸收。该激光器工作稳定,具有多种输出脉冲特性。

Intensity Correlation Function of a Single-Mode Laser Driven by Colored Cross-Correlation Noises in Modulation of a Bias Signal

By using the linear approximation method, the intensity correlation function is calculated for a single-mode laser modulated by a bias signal and driven by colored pump and quantum noises with colored cross-correlation. We found that, when the correlation time between the two noises is very short, the behavior of the intensity correlation function versus the time, in addition to decreasing monotonously, also exhibits several cases, such as one maximum, one minimum, and two extrema. When the correlation time between the two noises is very long, the behavior of the intensity correlation function exhibits oscillation and the envelope is similar to the case of short cross-correlation time.