High-power and high-efficiency operation of 1.3 µm-wavelength InP-based photonic-crystal surface-emitting lasers with metal reflector.

Itoh, Yuhki; Aoki, Takeshi; Fujii, Kosuke; Yoshinaga, Hiroyuki; Fujiwara, Naoki; Takada, Kenshi; Ogasawara, Makoto; Sawada, Yusuke; Yagi, Hideki; Yanagisawa, Masaki; Yoshida, Masahiro; Inoue, Takuya; Zoysa, Menaka De; Ishizaki, Kenji; Noda, Susumu

Itoh, Yuhki; Aoki, Takeshi; Fujii, Kosuke; Yoshinaga, Hiroyuki; Fujiwara, Naoki; Takada, Kenshi; Ogasawara, Makoto; Sawada, Yusuke; Yagi, Hideki; Yanagisawa, Masaki; Yoshida, Masahiro; Inoue, Takuya; Zoysa, Menaka De; Ishizaki, Kenji; Noda, Susumu.

Opt Express ; 32(7): 12520-12527, 2024 Mar 25.

Article en En | MEDLINE | ID: mdl-38571072

ABSTRACT

ABSTRACT

We demonstrate high-output-power and high-efficiency operation of 1.3-µm-wavelength InP-based photonic-crystal surface-emitting lasers (PCSELs). By introducing a metal reflector and adjusting the phase of the reflected light via optimization of the thickness of the p-InP cladding layer, we successfully achieve an output power of approximately 400âmW with the slope efficiency of 0.4 W/A and the wall-plug efficiency of 20% under CW conditions. In addition, this PCSEL exhibits a narrow circular beam with a divergence angle below 1.6° even at high output powers under CW conditions at temperatures from 15°C to 50°C. We have also demonstrated an output power of over 12 W under pulsed conditions at room temperature.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Opt Express Asunto de la revista: OFTALMOLOGIA Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos

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