Broad gain, continuous-wave operation of InP-based quantum cascade laser at λ～11.8 μm

被引：0

作者：

王欢 ^{[1
,2
]}

张锦川 ^{[1
]}

程凤敏 ^{[1
,3
]}

顾增辉 ^{[1
,2
]}

卓宁 ^{[1
]}

翟慎强 ^{[1
]}

刘峰奇 ^{[1
,2
,3
]}

刘俊岐 ^{[1
,2
]}

刘舒曼 ^{[1
,2
]}

王占国 ^{[1
,2
]}

机构：

[1] Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences,Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices

[2] Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences

[3] Beijing Academy of Quantum Information Sciences

来源：

Chinese Physics B | 2021年 / 30卷 / 12期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TN248 [激光器]; O413 [量子论];

学科分类号：

070201 ; 0803 ; 080401 ; 080901 ;

摘要：

We demonstrate a broad gain, continuous-wave(CW) operation InP-based quantum cascade laser(QCL) emitting at 11.8 μm with a modified dual-upper-state(DAU) and diagonal transition active region design. A 3 mm cavity length,16.5 μm average ridge wide QCL with high-reflection(HR) coatings demonstrates a maximum peak power of 1.07 W at 283 K and CW output power of 60 m W at 293 K. The device also shows a broad and dual-frequency lasing spectrum in pulsed mode and a maximum average power of 258.6 mW at 283 K. Moreover, the full width at half maximum(FWHM)of the electroluminescent spectrum measured at subthreshold current is 2.37 μm, which indicates a broad gain spectrum of the materials. The tuning range of 1.38 μm is obtained by a grating-coupled external cavity(EC) Littrow configuration,which is beneficial for gas detection.

引用

页码：396 / 400

页数：5

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