• Infrared and Laser Engineering
  • Vol. 51, Issue 3, 20220197 (2022)
Chunfan Zhu, Xiangeng Wang, Xiang Wang, and Ruijun Wang*
Author Affiliations
  • School of Electronic and Information Technology, Sun Yat-sen University, Guangzhou 510000, China
  • show less
    DOI: 10.3788/IRLA20220197 Cite this Article
    Chunfan Zhu, Xiangeng Wang, Xiang Wang, Ruijun Wang. Photonics integration of mid-infrared quantum cascade laser (Invited)[J]. Infrared and Laser Engineering, 2022, 51(3): 20220197 Copy Citation Text show less

    Abstract

    Mid-infrared photonic integrated circuits have been attracting a lot of interest for applications in environmental monitoring, medical diagnosis and national defense. However, the integration of laser sources with low-loss mid-infrared waveguide circuits is challenging. Quantum cascade lasers (QCLs) are important semiconductor laser sources operating in the mid-infrared spectral range. In this review paper, the research progress of the photonics integration of mid-infrared QCLs in recent years was introduced. Several different approaches were reviewed, including monolithic integration on InP, monolithic integration on silicon, heterogeneous integration on silicon and III-V/Germanium hybrid external cavity laser.
    Chunfan Zhu, Xiangeng Wang, Xiang Wang, Ruijun Wang. Photonics integration of mid-infrared quantum cascade laser (Invited)[J]. Infrared and Laser Engineering, 2022, 51(3): 20220197
    Download Citation