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Opt Lett. 2006 Jan 15;31(2):229-31.

Solid-state laser spectral narrowing using a volumetric photothermal refractive Bragg grating cavity mirror.

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  • 1College of Optics and Photonics, CREOL and FPCE, University of Central Florida, Orlando 32816, USA.


Dramatic spectral narrowing of two normally broadband lasers, Ti:sapphire and Cr:LiSAF, was achieved by simply replacing the output mirror with a reflective, volumetric Bragg grating recorded in photothermal refractive glass. The output power of each laser was unchanged from that obtained using dielectric coated output mirrors with the same output coupling as the Bragg grating while spectral brightness increased by 3 orders of magnitude.

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