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Generation of ultraviolet picosecond pulses by frequency-doubling of laser diode in proton-exchanged MgO:LiNbO/sub 3/ waveguide

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4 Author(s)
Tohmon, Genji ; Matsushita Electrical Ind. Co. Ltd., Osaka, Japan ; Jun Ohya ; Yamamoto, Kazuhisa ; Taniuchi, T.

Ultraviolet picosecond pulses were generated by frequency doubling a AlGaAs-GaAs laser diode in a proton-exchanged waveguide fabricated in MgO:LiNbO/sub 3/. The Cerenkov radiation scheme was used to phase-match the infrared pulse from a gain-switched laser diode, which operates in multilongitudinal modes. Pulses with a peak power of 1.35 mW and 19.3-ps width were obtained at 390 nm. This is a unique method for generating short ultraviolet pulses with laser diodes in a simple configuration.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:2 ,  Issue: 9 )

Date of Publication:

Sept. 1990

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