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Proceedings Paper

Widely tunable ultraviolet C generation using wavelength selective external high-Q-cavity and a blue laser diode system
Author(s): C. Tangtrongbenchasil; K. Nonaka
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Paper Abstract

This paper presents a second harmonic generation scheme using a nonlinear optic crystal and a multimode Fabry-Perot blue laser diode that has potential to generate widely tunable coherent deep ultraviolet at approximately 225 nm. Using the Fabry-Perot multimode laser diode with the sum-frequency technique, a high second harmonic power is hardly observed due to low conversion efficiency. In this paper, an approximately 1 μW second harmonic ultraviolet power at around 225 nm ultraviolet wavelength and approximately 6 nm ultraviolet wavelength tunability can be obtained using a multi mode blue LD chip, a nonlinear optic crystal, and an external high-Q-cavity setup.

Paper Details

Date Published: 3 April 2008
PDF: 6 pages
Proc. SPIE 6793, International Workshop and Conference on Photonics and Nanotechnology 2007, 679306 (3 April 2008); doi: 10.1117/12.798952
Show Author Affiliations
C. Tangtrongbenchasil, Kochi Univ. of Technology (Japan)
K. Nonaka, Kochi Univ. of Technology (Japan)


Published in SPIE Proceedings Vol. 6793:
International Workshop and Conference on Photonics and Nanotechnology 2007

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