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Efficient ultraviolet light generation by LiNbO3 waveguide first-order quasi-phase-matched second-harmonic generation devices

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4 Author(s)
Kintaka, K. ; Dept. of Electron. Eng., Osaka Univ., Japan ; Fujimura, M. ; Suhara, T. ; Nishihara, H.

LiNbO3 waveguide first-order quasi-phase-matched second-harmonic generation devices for ultraviolet light generation were fabricated by applying voltage for the first time. Ultraviolet light of 383 nm wavelength was obtained with a domain-inverted grating with 2.0 μm period. A high output of 1.9 mW and a high normalised efficiency of 60%/W were obtained with a 3 mm interaction length

Published in:

Electronics Letters  (Volume:32 ,  Issue: 24 )