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Intensity-modulated blue light generated by frequency doubling of wavelength-modulated high-power diode-laser radiation

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5 Author(s)
Woll, Dirk ; Fachbereich Physik, Technische Universität Kaiserslautern, Erwin-Schrödinger-Strasse 46, D-67663 Kaiserslautern, Germany ; Tremont, Marc A. ; Fuchs, Harry ; Casel, Oliver
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 nm radiation of a high-power diode-laser master-oscillator power-amplifie..."/>

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1899234 

A scheme for the generation of modulated blue laser radiation is demonstrated. The 923 nm radiation of a high-power diode-laser master-oscillator power-amplifier system is wavelength modulated within a range of 0.2 nm by modulating the injection current of the distributed feedback (DFB) diode oscillator. Single-pass frequency doubling of the generated radiation in periodically poled potassium titanyl phospate converts the wavelength modulation into an intensity modulation with a contrast ratio exceeding 700:1. The 3 dB modulation bandwidth of 35 kHz is limited by the speed of the wavelength tuning of the DFB oscillator.

Published in:
Applied Physics Letters  (Volume:86 ,  Issue: 15 )

Date of Publication: Apr 2005

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