Ultrashort Pulse and High Power Mode-Locked Laser With Chirped InAs/InP Quantum Dot Active Layers

被引:19
作者
Gao, Feng [1 ]
Luo, Shuai [1 ]
Ji, Hai-Ming [1 ]
Liu, Song-Tao [1 ]
Xu, Feng [1 ]
Lv, Zun-Ren [1 ]
Lu, Dan [1 ]
Ji, Chen [1 ]
Yang, Tao [1 ]
机构
[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
Quantum dots; semiconductor lasers; laser mode locking; WAVELENGTH; GENERATION; DYNAMICS; GAIN;
D O I
10.1109/LPT.2016.2561302
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We demonstrate an ultrashort pulse and high power single-section mode-locked laser using chirped multiple InAs/InP quantum dot (QD) layers as the active region of the laser. The chirped QD active region consists of seven layers of InAs QDs of different heights, which is beneficial in broadening the material gain spectrum. A transform-limited Gaussian pulse with a pulse duration of 322 fs is obtained from a device of 1 mm in length. Moreover, the femtosecond pulse with highest peak power of 6.8 W is achieved for the 45.5-GHz mode-locked laser. These results show the potential of the mode-locked laser for femtosecond pulse generation with high peak power and high repetition rate in the 1.55-mu m wavelength band.
引用
收藏
页码:1481 / 1484
页数:4
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