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

Shanting Hu; Xiaodong Gu; Ahmed Hassan; Ruixiao Li; Masanori Nakahama; Satoshi Shinada; Fumio Koyama

doi:10.1364/OE.453090

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

Shanting Hu^*, Xiaodong Gu, Ahmed Hassan, Ruixiao Li, Masanori Nakahama, Satoshi Shinada, Fumio Koyama

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We demonstrate the lateral monolithic integration of a tunable first-order surfacegrating 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.

Original language	English
Pages (from-to)	8742-8749
Number of pages	8
Journal	Optics Express
Volume	30
Issue number	6
DOIs	https://doi.org/10.1364/OE.453090
Publication status	Published - 14 Mar 2022

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abstract = "We demonstrate the lateral monolithic integration of a tunable first-order surfacegrating 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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AU - Hu, Shanting

AU - Gu, Xiaodong

AU - Hassan, Ahmed

AU - Li, Ruixiao

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AU - Shinada, Satoshi

AU - Koyama, Fumio

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AB - We demonstrate the lateral monolithic integration of a tunable first-order surfacegrating 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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Ultra-compact VCSEL scanner for high power solid-state beam steering

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