Integrated Photonic Device for Wavelength-Stable Laser Oscillation and Simultaneous Input Coupling

Keisuke Ozawa; Aika Taniguchi; Ryohei Ueda; Shunsuke Teranishi; Akari Watanabe; Junichi Inoue; Kenji Kintaka; Shogo Ura

doi:10.1109/JPHOT.2023.3241362

IEEE Photonics Journal (Jan 2023)

Integrated Photonic Device for Wavelength-Stable Laser Oscillation and Simultaneous Input Coupling

Keisuke Ozawa,
Aika Taniguchi,
Ryohei Ueda,
Shunsuke Teranishi,
Akari Watanabe,
Junichi Inoue,
Kenji Kintaka,
Shogo Ura

Affiliations

Keisuke Ozawa: ORCiD; Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan
Aika Taniguchi: Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan
Ryohei Ueda: Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan
Shunsuke Teranishi: Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan
Akari Watanabe: Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan
Junichi Inoue: ORCiD; Faculty of Electrical Engineering and Electronics, Kyoto Institute of Technology, Kyoto, Japan
Kenji Kintaka: ORCiD; Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, Ikeda, Japan
Shogo Ura: Faculty of Electrical Engineering and Electronics, Kyoto Institute of Technology, Kyoto, Japan

DOI: https://doi.org/10.1109/JPHOT.2023.3241362
Journal volume & issue: Vol. 15, no. 1
pp. 1 – 6

Abstract

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A guided-mode-resonance device for both narrow-band retroreflection and waveguide input coupling was designed and fabricated for operation wavelength of 1550 nm. It consists of a focusing grating coupler (FGC) integrated in a waveguide cavity resonator constructed by a pair of distributed Bragg reflectors (DBRs) on a reflection substrate. The size of the FGC was 31 × 20 μm2. The device was used as a laser mirror of an external cavity laser. The oscillation wavelength was fixed to the retroreflection wavelength, and the laser power was coupled to a waveguide. The coupled power depends on the length of one DBR. The optimal length for the maximum coupling was also discussed theoretically and experimentally.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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