Highly Efficient +5-dB Parametric Gain Conversion Using Direct-Bonded PPZnLN Ridge Waveguide

We fabricated a 50-mm-long ZnO-doped quasi-phase-matched LiNbO ridge waveguide by employing the direct bonding and dry etching techniques. We obtained a second-harmonic generation conversion efficiency of 2400%/W and a second-harmonic output power of 148 mW with a pump power of 160 mW. We demonstrat...

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Bibliographic Details
Published in:	IEEE photonics technology letters Vol. 20; no. 1; pp. 15 - 17
Main Authors:	Umeki, T., Asobe, M., Nishida, Y., Tadanaga, O., Magari, K., Yanagawa, T., Suzuki, H.
Format:	Journal Article
Language:	English
Published:	New York IEEE 01-01-2008 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Annealing Bonding Conversion Dry etching Gain Noise levels Nonlinear optics Optical device fabrication optical frequency conversion Optical waveguides Optical wavelength conversion Photorefractive effect Power generation Protons Pumps ridge waveguide Ridges Waveguides Wavelength division multiplexing Wavelengths
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Summary:	We fabricated a 50-mm-long ZnO-doped quasi-phase-matched LiNbO ridge waveguide by employing the direct bonding and dry etching techniques. We obtained a second-harmonic generation conversion efficiency of 2400%/W and a second-harmonic output power of 148 mW with a pump power of 160 mW. We demonstrated 1.55-m-band wavelength conversion based on a cascade scheme. A parametric conversion gain of 5 dB was successfully achieved.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2007.911008