中国物理B ›› 2021, Vol. 30 ›› Issue (12): 124202-124202.doi: 10.1088/1674-1056/abf91a

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

Huan Wang(王欢)1,2, Jin-Chuan Zhang(张锦川)1,†, Feng-Min Cheng(程凤敏)1,3, Zeng-Hui Gu(顾增辉)1,2, Ning Zhuo(卓宁)1, Shen-Qiang Zhai(翟慎强)1, Feng-Qi Liu(刘峰奇)1,2,3,‡, Jun-Qi Liu(刘俊岐)1,2, Shu-Man Liu(刘舒曼)1,2, and Zhan-Guo Wang(王占国)1,2   

  1. 1 Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Beijing 100083, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Beijing Academy of Quantum Information Sciences, Beijing 100193, China
  • 收稿日期:2021-03-12 修回日期:2021-04-07 接受日期:2021-04-19 出版日期:2021-11-15 发布日期:2021-11-20
  • 通讯作者: Jin-Chuan Zhang, Jin-Chuan Zhang E-mail:zhangjinchuan@semi.ac.cn;fqliu@semi.ac.cn
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2018YFA0209103), the National Natural Science Foundation of China (Grant Nos. 61991430, 61774146, 61790583, 61734006, 61835011, 61674144, 61774150, and 61805168), Beijing Municipal Science & Technology Commission, China (Grant No. Z201100004020006), and the Key Projects of the Chinese Academy of Sciences (Grant Nos. 2018147, YJKYYQ20190002, QYZDJ-SSW-JSC027, XDB43000000, and ZDKYYQ20200006).

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

Huan Wang(王欢)1,2, Jin-Chuan Zhang(张锦川)1,†, Feng-Min Cheng(程凤敏)1,3, Zeng-Hui Gu(顾增辉)1,2, Ning Zhuo(卓宁)1, Shen-Qiang Zhai(翟慎强)1, Feng-Qi Liu(刘峰奇)1,2,3,‡, Jun-Qi Liu(刘俊岐)1,2, Shu-Man Liu(刘舒曼)1,2, and Zhan-Guo Wang(王占国)1,2   

  1. 1 Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Beijing 100083, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Beijing Academy of Quantum Information Sciences, Beijing 100193, China
  • Received:2021-03-12 Revised:2021-04-07 Accepted:2021-04-19 Online:2021-11-15 Published:2021-11-20
  • Contact: Jin-Chuan Zhang, Jin-Chuan Zhang E-mail:zhangjinchuan@semi.ac.cn;fqliu@semi.ac.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2018YFA0209103), the National Natural Science Foundation of China (Grant Nos. 61991430, 61774146, 61790583, 61734006, 61835011, 61674144, 61774150, and 61805168), Beijing Municipal Science & Technology Commission, China (Grant No. Z201100004020006), and the Key Projects of the Chinese Academy of Sciences (Grant Nos. 2018147, YJKYYQ20190002, QYZDJ-SSW-JSC027, XDB43000000, and ZDKYYQ20200006).

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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 mW 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.

关键词: dual-upper-state (DAU), quantum cascade lasers, external cavity, gas detection

Abstract: 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 mW 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.

Key words: dual-upper-state (DAU), quantum cascade lasers, external cavity, gas detection

中图分类号:  (Semiconductor lasers; laser diodes)

  • 42.55.Px
42.60.Lh (Efficiency, stability, gain, and other operational parameters) 42.60.Pk (Continuous operation)