Blue laser devices for optical data storage

Wilfried Lenth; William J. Kozlovsky; William P. Risk

doi:10.1117/12.45944

1 July 1991 Blue laser devices for optical data storage

Wilfried Lenth, William J. Kozlovsky, William P. Risk

Proceedings Volume 1499, Optical Data Storage '91; (1991) https://doi.org/10.1117/12.45944
Event: Optical Data Storage, 1991, Colorado Springs, CO, United States

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.

Citation Download Citation

Wilfried Lenth, William J. Kozlovsky, and William P. Risk "Blue laser devices for optical data storage", Proc. SPIE 1499, Optical Data Storage '91, (1 July 1991); https://doi.org/10.1117/12.45944

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