Photonics Research, Volume. 6, Issue 7, 721(2018)

Multi-wavelength sampled Bragg grating quantum cascade laser arrays

Xue-Feng Jia1,2,3, Li-Jun Wang1,2,3、*, Ning Zhuo1,2,4, Jin-Chuan Zhang1,2, Shen-Qiang Zhai1,2, Jun-Qi Liu1,2,3, Shu-Man Liu1,2,3, Feng-Qi Liu1,2,3, and Zhanguo Wang1,2,3
Author Affiliations
  • 1Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • 2Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Beijing 100083, China
  • 3College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 101408, China
  • 4e-mail: zhuoning@semi.ac.cn
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    Figures & Tables(7)
    EL spectrum and the calculated transmission spectrum. The inset displays the enlarged −2nd order mode in the transmission spectrum. The defect mode introduced by EPS can ensure stable single-mode emission.
    (a) Optical microscope image of SBG-QCL array bonded on patterned AlN submount; (b) magnified view of the front facet of the array; (c) SEM image of the sampled grating.
    Measured spectra of the 18 SBG-QCLs from an array with different sampling periods ranging from 8 to 32 μm (from bottom to top).
    (a) Measured spectra of laser #6 in the array at different heat sink temperatures from 20°C to 55°C. The inset shows the tuning of the peak wavenumber with temperature. (b) The P-I-V characteristics of laser #6 in the array.
    Calculated transmission spectrum with a sampling period of 19 μm and base grating period of 1.38 μm. The inset illustrates the breakdown of the translational symmetry.
    Calculated effective refractive index coupling |Δn| versus duty cycle for the (a) zero-, (b) first-, (c) second-, and (d) third-order modes, respectively.
    • Table 1. Detailed Values of the Sampling Period, Emitting Wavelength, and Output Power for All 18 Lasers

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      Table 1. Detailed Values of the Sampling Period, Emitting Wavelength, and Output Power for All 18 Lasers

      LaserSampling Period Z (μm)Wavelength λ (μm)Power (mW)LaserSampling Period Z (μm)Wavelength λ (μm)Power (mW)
      187.4541541012.57.852152
      28.57.5211801114.57.358152
      397.57910812167.448146
      49.57.62817213177.527115
      5107.67215114197.59094
      610.57.71015015217.316140
      7117.75215516247.464122
      811.57.78614017287.615176
      9127.84615818327.737164
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    Xue-Feng Jia, Li-Jun Wang, Ning Zhuo, Jin-Chuan Zhang, Shen-Qiang Zhai, Jun-Qi Liu, Shu-Man Liu, Feng-Qi Liu, Zhanguo Wang. Multi-wavelength sampled Bragg grating quantum cascade laser arrays[J]. Photonics Research, 2018, 6(7): 721

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Feb. 7, 2018

    Accepted: Apr. 28, 2018

    Published Online: Jul. 4, 2018

    The Author Email: Li-Jun Wang (ljwang@semi.ac.cn)

    DOI:10.1364/PRJ.6.000721

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