Abstract
Compact laser sources with deliberately configured spectral characteristics are of particular interest for imaging systems, spectroscopic and THz photomixing applications. Previous demonstrations of spectral narrowing and stable multiwavelength operation have been realized with a gain-switched diode laser1. This work presents stable dual-wave length operation in the gain-switching and also in the continuous wave (cw) regime of a single-mode diode laser with a novel optical element, i.e. volume Bragg gratings (VBG’s) fabricated in photothermorefractive (PTR) glass2.
© 2007 IEEE
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