Abstract

We unveil a powerful method for the stabilization of laser injection locking based on sensing variations in the output beam ellipticity of an optically seeded laser. The effect arises due to an interference between the seeding beam and the injected laser output. We demonstrate the method for a commercial semiconductor laser without the need for any internal changes to the readily operational injection locked laser system that was used. The method can also be used to increase the mode-hop free tuning range of lasers, and has the potential to fill a void in the low-noise laser industry.

© 2023 Optica Publishing Group

Low-threshold all-optical nonlinear activation function based on injection locking in distributed feedback laser diodes

Binshuo Liu, Shaofu Xu, Bowen Ma, Sicheng Yi, and Weiwen Zou
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Compact sub-hertz linewidth laser enabled by self-injection lock to a sub-milliliter FP cavity

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High stability laser locking to an optical cavity using tilt locking

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Optical injection locking of a THz quantum-cascade VECSEL with an electronic source

Christopher A. Curwen, Anthony D. Kim, Boris S. Karasik, Jonathan H. Kawamura, and Benjamin S. Williams
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