Wavelength-tunable prism-coupled external cavity passively mode-locked quantum-dot laser  

作　　者：吴艳华 吴剑 金鹏 王飞飞 胡发杰 魏恒 王占国 

机构地区：[1]Key Laboratory of Semiconductor Materials Science and Beijing Key Laboratory of Low-dimensional Semiconductor Materials and Devices,Institute of Semiconductors,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2015年第6期613-616,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.61274072);the National High Technology Research and Development Program of China(Grant No.2013AA014201)

摘　　要：A wavelength-tunable mode-locked quantum dot laser using an InAs/GaAs quantum-dot gain medium and a discrete semiconductor saturable absorber mirror is demonstrated. A dispersion prism, which has lower optical loss and less spectral narrowing than a blazed grating, is used for wavelength selection and tuning. A wavelength tuning range of 45.5 nm （from 1137.3 nm to 1182.8 nm） under 140-mA injection current in the passive mode-locked regime is achieved. The maximum average power of 19 mW is obtained at the 1170.3-nm wavelength, corresponding to the single pulse energy of 36.5 pJ.A wavelength-tunable mode-locked quantum dot laser using an InAs/GaAs quantum-dot gain medium and a discrete semiconductor saturable absorber mirror is demonstrated. A dispersion prism, which has lower optical loss and less spectral narrowing than a blazed grating, is used for wavelength selection and tuning. A wavelength tuning range of 45.5 nm （from 1137.3 nm to 1182.8 nm） under 140-mA injection current in the passive mode-locked regime is achieved. The maximum average power of 19 mW is obtained at the 1170.3-nm wavelength, corresponding to the single pulse energy of 36.5 pJ.

关 键 词：quantum dot mode-locked laser prism-coupled external cavity TUNABILITY 

分 类 号：TN248[电子电信—物理电子学]