Watt-class blue vertical-cavity surface-emitting laser arrays

We have successfully demonstrated a high output power of 1.19 W from a two-dimensional 16 × 16 blue GaN-based vertical-cavity surface-emitting laser (VCSEL) array under continuous wave operation at a lasing wavelength of 447 nm. A 256-element VCSEL array exhibited a high-quality far-field beam patte...

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Bibliographic Details
Published inApplied physics express Vol. 12; no. 9; pp. 91004 - 91007
Main Authors Kuramoto, Masaru, Kobayashi, Seiichiro, Akagi, Takanobu, Tazawa, Komei, Tanaka, Kazufumi, Nakata, Keisuke, Saito, Tatsuma
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.09.2019
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Summary:We have successfully demonstrated a high output power of 1.19 W from a two-dimensional 16 × 16 blue GaN-based vertical-cavity surface-emitting laser (VCSEL) array under continuous wave operation at a lasing wavelength of 447 nm. A 256-element VCSEL array exhibited a high-quality far-field beam pattern with a circular shape and narrow divergence angle of around 7°. A very small shift of the lasing wavelength with a change in the dissipated power of 0.05 nm W−1 revealed a very low thermal resistance of 3.4 K W−1.
Bibliography:APEX-102416.R1
ISSN:1882-0778
1882-0786
DOI:10.7567/1882-0786/ab3aa6