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Proceedings Paper

Blue laser devices for optical data storage
Author(s): Wilfried Lenth; William J. Kozlovsky; William P. Risk
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Paper Abstract

A number of different techniques have been used for nonlinear frequency upconversion of near-infrared semiconductor diode lasers to blue wavelengths. Intracavity frequency doubling of a diode-laser-pumped 946- nm Nd:YAG laser resulted in generation of 9.5 mW of blue 473-nm power. A special electronic servo technique was devised to lock the output frequency of a single-mode GaAlAs diode laser to a monolithic KNbO3 resonator. Using this approach, 54 mW of 428-nm output were obtained with an electrical-to-optical conversion efficiency of approximately equals 12%. The use of nonlinear waveguide devices for frequency doubling of near- infrared diode lasers is promising for the development of miniaturized, low-cost blue laser sources.

Paper Details

Date Published: 1 July 1991
PDF: 6 pages
Proc. SPIE 1499, Optical Data Storage '91, (1 July 1991); doi: 10.1117/12.45944
Show Author Affiliations
Wilfried Lenth, IBM/Almaden Research Ctr. (United States)
William J. Kozlovsky, IBM/Almaden Research Ctr. (United States)
William P. Risk, IBM/Almaden Research Ctr. (United States)


Published in SPIE Proceedings Vol. 1499:
Optical Data Storage '91

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