Presentation
24 March 2023 Use of the Fourier method for robust single-frequency index-patterned laser design
Author Affiliations +
Abstract
The use of index-patterned Fabry-Perot lasers, where a small number of slot-like features are introduced along the laser cavity, is well established as a route to low cost, reliable single-frequency devices. We use a Fourier-transform based inverse scattering method to show how a modified choice of inverse function can deliver a significant improvement in modal threshold gain selectivity and SMSR compared to the originally proposed use of a constant inverse function for slot selection. We propose that the approach used can deliver a high yield of devices, with emission wavelength at or close to a target wavelength.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Niall D. Boohan, Brian Kelly, and Eoin P. O'Reilly "Use of the Fourier method for robust single-frequency index-patterned laser design", Proc. SPIE PC12415, Physics and Simulation of Optoelectronic Devices XXXI, PC1241503 (24 March 2023); https://doi.org/10.1117/12.2646345
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KEYWORDS
Laser development

Fourier transforms

Lithography

Phase shifting

Semiconductor lasers

Waveguide lasers

Waveguides

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