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Chinese Journal of Lasers, Volume. 52, Issue 16, 1603026(2025)

Surface‐Emitting Interband Cascade Lasers with Hybrid Gratings (Invited)

Feiyang He1,2, Ruixuan Sun1,2, Zheyu Song1,2, Shuman Liu1,2、*, Jinchuan Zhang1,2, Fengmin Cheng1, Junqi Liu1,2, Ning Zhuo1,2, Lijun Wang1,2, Shenqiang Zhai1,2, and Fengqi Liu1,2、**
Author Affiliations
  • 1Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • 2Center of Materials Science and Opto-Electronic Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(7)
    Simulation results of uniform second-order DFB grating. Electric field intensity distributions under (a) symmetrical mode and (b) antisymmetric mode; (c) relationship between waveguide loss and duty cycle of grating under two modes; (d) coupling coefficient under different duty cycles

    Fig. 1. Simulation results of uniform second-order DFB grating. Electric field intensity distributions under (a) symmetrical mode and (b) antisymmetric mode; (c) relationship between waveguide loss and duty cycle of grating under two modes; (d) coupling coefficient under different duty cycles

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    Schematic diagrams of grating structures

    Fig. 2. Schematic diagrams of grating structures

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    Simulation results of 2nd and 4th hybrid DFB grating. Electric field intensity distributions under (a) symmetrical mode and (b) antisymmetric mode; (c) relationship between waveguide loss and duty cycle of grating under two modes; (d) coupling coefficient under different duty cycles

    Fig. 3. Simulation results of 2nd and 4th hybrid DFB grating. Electric field intensity distributions under (a) symmetrical mode and (b) antisymmetric mode; (c) relationship between waveguide loss and duty cycle of grating under two modes; (d) coupling coefficient under different duty cycles

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    Schematic diagram of laser structure and SEM image of cross section of hybrid grating. (a) Schematic diagram of laser structure; (b) SEM image of cross section of hybrid grating

    Fig. 4. Schematic diagram of laser structure and SEM image of cross section of hybrid grating. (a) Schematic diagram of laser structure; (b) SEM image of cross section of hybrid grating

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    Spectra of ICLs with two types of surface DFB gratings

    Fig. 5. Spectra of ICLs with two types of surface DFB gratings

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    P-I-V performance of devices with two types of gratings under room-temperature CW condition

    Fig. 6. P-I-V performance of devices with two types of gratings under room-temperature CW condition

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    Far-field intensity distributions of ICLs with two types of gratings

    Fig. 7. Far-field intensity distributions of ICLs with two types of gratings

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    Feiyang He, Ruixuan Sun, Zheyu Song, Shuman Liu, Jinchuan Zhang, Fengmin Cheng, Junqi Liu, Ning Zhuo, Lijun Wang, Shenqiang Zhai, Fengqi Liu. Surface‐Emitting Interband Cascade Lasers with Hybrid Gratings (Invited)[J]. Chinese Journal of Lasers, 2025, 52(16): 1603026

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    Paper Information

    Category: Materials

    Received: Apr. 30, 2025

    Accepted: Jun. 4, 2025

    Published Online: Aug. 11, 2025

    The Author Email: Shuman Liu (liusm@semi.ac.cn), Fengqi Liu (fqliu@semi.ac.cn)

    DOI:10.3788/CJL250771

    CSTR:32183.14.CJL250771

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology