Monitoring and active stabilization of laser injection locking using beam ellipticity

We unveil a powerful method for 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 commercia...

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Bibliographic Details
Published inarXiv.org
Main Authors Mishra, Umang, Li, Vyacheslav, Wald, Sebastian, Agafonova, Sofia, Diorico, Fritz, Hosten, Onur
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 11.07.2023
Subjects
Ellipticity
Frequency locking
Laser outputs
Laser stability
Physics - Atomic Physics
Physics - Optics
Semiconductor lasers
Stabilization
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Summary:We unveil a powerful method for 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 utilized. 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.
ISSN:2331-8422
DOI:10.48550/arxiv.2212.01266