High-power continuous-wave single-longitudinal-mode operation of an optically pumped DFB laser at λ ∼ 3.64 μm

被引：5
|
作者：
Xue, L. [1 ]
Brueck, S. R. J. [1 ]
Kaspi, R. [2 ]
机构：
[1] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA
[2] USAF, Res Lab, Directed Energy Directorate, Albuquerque, NM 87117 USA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 9-12期
关键词：
distributed-feedback (DFB) lasers; optical pumping; quantum-well lasers; semiconductor lasers;
D O I：
10.1109/LPT.2008.921081
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：
High-power continuous-wave (CW) single-longitudinal-mode emission at 3.64 mu m is obtained from an optically pumped distributed-feedback (DFB) laser. The Bragg stopband and two degenerate DFB modes are observed at certain pump powers. The laser incorporates 14 InAs-InGaSb-InAs type-II quantum wells imbedded in an InGaAsSb waveguide. The index-coupled 1-D grating is fabricated in the top clad using interference lithography and plasma etching. A 110-mu m-wide stripe from a 1.9-mu m CW laser provides both optical pumping and gain guiding. Record high output power of more. than 560 mW per side is obtained at 80 K. The wavelength is tunable over a 6.8-nm range by varying the pump power from 1 to 8.1 W.
引用
收藏
页码：727 / 729
页数：3
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