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Proceedings Paper

Simultaneous amplitude modulation and wavelength conversion in a monolithic periodically poled lithium niobate
Author(s): Yen-Chieh Huang; Ker-Wei Chang; Anchung Chiang; Tze-Chia Lin; Bi-Cheng Wong; Y. H. Chen
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Paper Abstract

We report simultaneous frequency conversion and amplitude modulation in an optical second harmonic generator by electro-optically controlling the relative phase between the 1064-nm fundamental and the 532-nm second harmonic fields in a dispersion crystal section between two periodically poled lithium niobate (PPLN) sections. Theoretical derivation and experimental demonstration were carried out for two novel crystal configurations, including a linear cascaded configuration in which a 1-cm dispersion section is sandwiched between two 2-cm PPLN sections, and a folding- crystal configuration in which the mixing waves traverse twice in a 2-cm PPLN section through total internal reflections in a 1.5-cm dispersion section. Due to the coherence enhancement in the constructive phase between the two SHG fields in the two PPLN sections, we measured a 30% increase in conversion efficiency compared to a continuous 4-cm PPLN under the same condition. The measured half-wave voltage for the amplitude modulation is 1.1 volt x d micrometers /ld(cm), where d is the separation of the electrodes and ld is the length of the electrodes.

Paper Details

Date Published: 28 March 2002
PDF: 8 pages
Proc. SPIE 4628, Nonlinear Materials: Growth, Characterization, Devices, and Applications, (28 March 2002); doi: 10.1117/12.460812
Show Author Affiliations
Yen-Chieh Huang, National Tsinghua Univ. (Taiwan)
Ker-Wei Chang, National Tsinghua Univ. (Taiwan)
Anchung Chiang, National Tsinghua Univ. (Taiwan)
Tze-Chia Lin, National Tsinghua Univ. (Taiwan)
Bi-Cheng Wong, National Tsinghua Univ. (Taiwan)
Y. H. Chen, National Tsinghua Univ. (Taiwan)

Published in SPIE Proceedings Vol. 4628:
Nonlinear Materials: Growth, Characterization, Devices, and Applications
Dennis D. Lowenthal; Yehoshua Y. Kalisky, Editor(s)

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