JOURNAL ARTICLE

宽范围无跳模外腔可调谐半导体激光器

Abstract

具有宽调谐范围、无跳模以及高光谱纯净度的半导体激光器在超精细光谱、相干检测和光纤智能感知等领域有着重要的应用。但是受到半导体激光器固有运转特性的制约,通过传统的单片集成式半导体激光器难以获得高光谱纯净度的宽范围可调谐激光输出。因此文中采用闪耀光栅作为外腔反馈元件,单角面度半导体增益芯片作为增益介质,通过Littman-Metcalf外腔振荡结构实现了1480~1580 nm的宽调谐范围、无模式跳变的线宽小于98.27 kHz的激光输出,在注入电流为410 mA的条件下获得了16.95 dBm的峰值功率、全范围功率优于14.96 dBm和边模抑制比优于65.54 dB的输出。相应的实验结果表明:采用机械刻划闪耀光栅的Littman-Metcalf结构用于半导体激光器,可很大程度的改善半导体激光器的综合性能。该研究有利于推动其在提升光频域反射仪测量精度方向的应用。

Keywords:
dBm Materials science Optoelectronics

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Topics

Photonic and Optical Devices
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Advanced Fiber Laser Technologies
Physical Sciences →  Physics and Astronomy →  Atomic and Molecular Physics, and Optics
Mechanical and Optical Resonators
Physical Sciences →  Physics and Astronomy →  Atomic and Molecular Physics, and Optics
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