光学
激光器
材料科学
微波食品加热
半导体激光器理论
注射播种机
光电子学
噪音(视频)
放大自发辐射
无线电频率
激光线宽
物理
半导体
电信
计算机科学
量子力学
图像(数学)
人工智能
作者
Meiyan Yuan,Weiqiang Wang,Xinyu Wang,Yang Wang,Qinghua Yang,C. Dong,Lei Yang,Long Huang,Mingran Zhang,Bo Liang,Wei Zhao,Wenfu Zhang
出处
期刊:Optics Letters
[The Optical Society]
日期:2021-09-27
卷期号:46 (19): 4855-4855
被引量:3
摘要
Electrically pumped semiconductor mode-locked lasers (SMLs) are promising in a wide range of applications due to compact size, high energy efficiency, and low cost. However, the long gain interaction length increases the spontaneous emission noise. In this Letter, an external cavity structure is adopted to improve the SML noise performance, as well as the flexibility to adjust the repetition rate. Two external cavity SMLs with repetition rates of 255 MHz and 10 GHz are demonstrated. For the 10 GHz SML, the signal-noise-ratio and radio frequency linewidth of the fundamental frequency reach 81.1 dB and 40 Hz, respectively. The high performance makes the laser a promising light source for microwave and communication applications.
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