Numerical study of a harmonic mode-locked semiconductor optical amplifier fiber ring laser
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- 作者：Fei Wang ; Haitao Chen ; Wenyan Yang ; Zhengmao Wu ; Guangqiong Xia
- 关键词：Laser technique ; Fiber laser ; Harmonic mode locking ; Semiconductor optical amplifier ; Cross-gain modulation
- 刊名：Optik - International Journal for Light and Electron Optics
- 出版年：2007
- 出版时间：6 September 2007
- 年：2007
- 卷：118
- 期：9
- 页码：430-434
- 全文大小：317 K
文摘
An improved harmonic mode-locked Semiconductor optical amplifier (SOA) fiber ring lasers has been presented and numerically investigated based on the self-reproduction theory. The numerical result shows that a narrower optical pulse train with a more symmetrical-temporal shape can be obtained, when the modulation SOA is DC biased on high current, whereas the gain SOA is DC biased on the low current functions as a gain compensator in the experimental setup. Also, the system parameters effects on the characteristic of the harmonic mode-locked pulse have been investigated.