Ultra-compact VCSEL scanner for high power solid-state beam steering | Zendy

Shanting Hu | Zendy; Xiaodong Gu | Zendy; Ahmed M. Hassan | Zendy; Ruixiao Li | Zendy; Masanori Nakahama | Zendy; Satoshi Shinada | Zendy; Fumio Koyama | Zendy

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Ultra-compact VCSEL scanner for high power solid-state beam steering

Author(s) -

Shanting Hu,

Xiaodong Gu,

Ahmed M. Hassan,

Ruixiao Li,

Masanori Nakahama,

Satoshi Shinada,

Fumio Koyama

Publication year - 2022

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.453090

Subject(s) - vertical cavity surface emitting laser , optics , beam steering , materials science , amplifier , optoelectronics , grating , laser beam quality , waveguide , laser , beam (structure) , physics , laser beams , cmos

We demonstrate the lateral monolithic integration of a tunable first-order surface-grating loaded vertical-cavity surface-emitting laser (VCSEL) and slow-light waveguide with fan-beam steering and amplifier function. Shallow Bragg-grating formed on the surface of a VCSEL section enables the selection of a single slow-light mode, which can be coupled into the integrated long waveguide and amplified through pumping the amplifier above threshold. We obtained over 3W amplified slow-light power with single-mode operation and over 4W amplified quasi-single-mode power under pulsed current injection. To the best of our knowledge, this is the highest output power for single-mode VCSELs. Solid-state beam steering of the device is also demonstrated with 9° fan-beam steering range and 200 resolution points.

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