准共线声光可调谐掺铒光纤激光器的研究

提出了一种新颖的单纵模、单偏振的可调谐掺铒光纤激光器结构.使用准共线型声光可调谐滤波器作为调谐元件.利用饱和吸收效应在未泵浦低掺铒光纤中形成自写入瞬态光栅,用以压窄输出激光的线宽,并且有效地防止跳模.理论计算表明:当泵浦功率为100 mW时,激光器的输出功率可达5.5 mW,输出线宽在10-4 nm 量级.这些数据对后续的实验研究有指导作用.

Abstract

A novel configuration of tunable single-longitudinal and single-polarization erbium-doped fiber laser is presented, while two stages of quasi-collinear acoustooptical tunable filters(AOTFs) are used as the tuning elements. An unpumped Er3+-doped fiber(low dopant) is used to narrow the linewidth and eliminate mode hopping. The theoretical calculation shows the output power is 5.5 mW and the linewidth can reach 10-4 nm level when the pump power is at 100 mW. All these data are significant for the oncoming experimental study.

参考文献

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洪宝玉, 向望华, 胡鸿璋, 胡斌, 耿凡. 准共线声光可调谐掺铒光纤激光器的研究[J]. 红外与激光工程, 2003, 32(5): 460. 洪宝玉, 向望华, 胡鸿璋, 胡斌, 耿凡. Study on quasi-collinear acoustooptical tunable erbium-doped fiber laser[J]. Infrared and Laser Engineering, 2003, 32(5): 460.

准共线声光可调谐掺铒光纤激光器的研究

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