2008•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIERequires access

Investigation on the linewidth enhancement factor of multiple longitudinal mode semiconductor lasers

Asier Villafranca, G. Giuliani, Silvano Donati, Ignacio Garcés

Abstract

We present a theoretical and experimental research of the linewidth enhancement factor or α factor in multiple-longitudinal mode semiconductor lasers. In this work, several methods originally developed for single-mode lasers have been adapted for their use with multiple-longitudinal mode lasers and applied to each mode of several Fabry-Perot lasers at a time. The concepts of material LEF and device LEF are compared and discussed.

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Key concepts: Laser linewidth, Semiconductor laser theory, Longitudinal mode, Laser, Optoelectronics, Injection seeder, Optics, Materials science