半导体学报2012，Vol.33Issue(2)：51-53,3.DOI:10.1088/1674-4926/33/2/024005
Distributed feedback quantum cascade lasers operating in continuous-wave mode at λ ≈ 7.6μm
Distributed feedback quantum cascade lasers operating in continuous-wave mode at λ ≈ 7.6μm
摘要
Abstract
Distributed feedback (DFB) quantum cascade lasers (QCLs) in continuous-wave (CW) mode emitting at λ ≈ 7.6μm are presented.Holographic lithography was used to fabricate the first-order distributed feedback grating.For a high-reflectivity-coated QCL with 14.5-μm-wide and 3-mm-long cavity,CW output powers of 300 mW at 85 K and still 10 mW at 270 K are obtained.Single-mode emission with a side-mode suppression ratio (SMSR) of about 30 dB and a wide tuning range of ～300 nm in the temperature range from 85 to 280 K is observed.关键词
quantum cascade laser/ distributed feedback/ holographic lithographyKey words
quantum cascade laser/ distributed feedback/ holographic lithography引用本文复制引用
张锦川,王利军,刘万峰,刘峰奇,赵立华,翟慎强,刘俊岐,王占国..Distributed feedback quantum cascade lasers operating in continuous-wave mode at λ ≈ 7.6μm[J].半导体学报,2012,33(2):51-53,3.基金项目
Project supported by the National Science Fund for Distinguished Young Scholars of China (No.60525406),the National Natural Science Foundation of China (Nos.60736031,60806018,60906026),and the National High Technology Research and Development Program of China (Nos.2007AA03Z446,2009AA03Z403). （No.60525406）
