High power chip-scale laser

Yair Antman; Andres Gil-Molina; Ohad Westreich; Xingchen Ji; Alexander L. Gaeta; Michal Lipson

doi:10.1364/OE.528864

High power chip-scale laser

Yair Antman, Andres Gil-Molina, Ohad Westreich, Xingchen Ji, Alexander L. Gaeta, Michal Lipson

Columbia University

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

Abstract

The lack of high-power integrated lasers has been limiting silicon photonics. Despite much progress in chip-scale laser integration, power output remains below levels required for key applications due to low energy efficiency at high pumping currents. Here we break this power limitation by coupling a broad-area multimode gain chip to a silicon-nitride ring resonator and single-mode filter. The resulting optical feedback causes the multimode-gain chip to concentrate its power into a single highly coherent mode. Our device produces more than 150 mW of power and 400 kHz linewidth. We achieve these metrics while maintaining a small footprint of 3 mm2.

Original language	English
Pages (from-to)	47306-47312
Number of pages	7
Journal	Optics Express
Volume	32
Issue number	26
DOIs	https://doi.org/10.1364/OE.528864
State	Published - 16 Dec 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

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10.1364/OE.528864

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abstract = "The lack of high-power integrated lasers has been limiting silicon photonics. Despite much progress in chip-scale laser integration, power output remains below levels required for key applications due to low energy efficiency at high pumping currents. Here we break this power limitation by coupling a broad-area multimode gain chip to a silicon-nitride ring resonator and single-mode filter. The resulting optical feedback causes the multimode-gain chip to concentrate its power into a single highly coherent mode. Our device produces more than 150 mW of power and 400 kHz linewidth. We achieve these metrics while maintaining a small footprint of 3 mm2.",

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AU - Gil-Molina, Andres

AU - Westreich, Ohad

AU - Ji, Xingchen

AU - Gaeta, Alexander L.

AU - Lipson, Michal

PY - 2024/12/16

Y1 - 2024/12/16

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AB - The lack of high-power integrated lasers has been limiting silicon photonics. Despite much progress in chip-scale laser integration, power output remains below levels required for key applications due to low energy efficiency at high pumping currents. Here we break this power limitation by coupling a broad-area multimode gain chip to a silicon-nitride ring resonator and single-mode filter. The resulting optical feedback causes the multimode-gain chip to concentrate its power into a single highly coherent mode. Our device produces more than 150 mW of power and 400 kHz linewidth. We achieve these metrics while maintaining a small footprint of 3 mm2.

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High power chip-scale laser

Abstract

Bibliographical note

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