Design and Characteristics of Photonic Crystal Resonators for Surface-Emitting Quantum Cascade Lasers

Kazuaki Sakoda; Yuanzhao Yao; Naoki Ikeda; Yoshimasa Sugimoto; Takaaki Mano; Takashi Kuroda; Hirotaka Tanimura; Shigeyuki Takagi; Rei Hashimoto; Kei Kaneko; Tsutomu Kakuno; Shinji Ohkuma; Ryuichi Togawa; Tetsuya Miyagawa; Hiroshi Ohno; Shinji Saito

doi:10.3390/photonics11111024

論文 Design and Characteristics of Photonic Crystal Resonators for Surface-Emitting Quantum Cascade Lasers

Kazuaki Sakoda (National Institute for Materials Science) ; Yuanzhao Yao ; Naoki Ikeda (National Institute for Materials Science) ; Yoshimasa Sugimoto ; Takaaki Mano (National Institute for Materials Science) ; Takashi Kuroda (National Institute for Materials Science) ; Hirotaka Tanimura ; Shigeyuki Takagi ; Rei Hashimoto ; Kei Kaneko ; Tsutomu Kakuno ; Shinji Ohkuma ; Ryuichi Togawa ; Tetsuya Miyagawa ; Hiroshi Ohno ; Shinji Saito

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Kazuaki Sakoda, Yuanzhao Yao, Naoki Ikeda, Yoshimasa Sugimoto, Takaaki Mano, Takashi Kuroda, Hirotaka Tanimura, Shigeyuki Takagi, Rei Hashimoto, Kei Kaneko, Tsutomu Kakuno, Shinji Ohkuma, Ryuichi Togawa, Tetsuya Miyagawa, Hiroshi Ohno, Shinji Saito. Design and Characteristics of Photonic Crystal Resonators for Surface-Emitting Quantum Cascade Lasers. Photonics. 2024, 11 (11), 1024. https://doi.org/10.3390/photonics11111024

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(abstract)

We present our recent development of the surface-emitting quantum cascade laser with a PC (photonic crystal) resonator and a strain-compensated MQW (multiple quantum well) active layer operating at around 4.3 μm. We describe the laser performance mainly from the viewpoint of the design and analysis of the PC resonators, include both numerical calculations by FEM (finite element method) and analytical calculations using the k·p perturbation theory and group theory. We analyze the resonance quality factor, overlap factor, extraction efficiency, and far-field pattern, and show how the output power and beam quality have been improved by the appropriate design of the PC resonator.

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