Title :
Highly Efficient +5-dB Parametric Gain Conversion Using Direct-Bonded PPZnLN Ridge Waveguide
Author :
Umeki, T. ; Asobe, M. ; Nishida, Y. ; Tadanaga, O. ; Magari, K. ; Yanagawa, T. ; Suzuki, H.
Author_Institution :
NTT Corp., Kanagawa
Abstract :
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.
Keywords :
lithium compounds; optical harmonic generation; optical waveguides; ridge waveguides; zinc; LiNbO3:ZnO; direct bonding; dry etching; gain 5 dB; nonlinear optics; optical frequency conversion; parametric gain conversion; periodically poled Zn-doped LiNbO3 ridge waveguide; second-harmonic generation conversion efficiency; size 50 mm; wavelength 1.55 mum; wavelength conversion; Annealing; Bonding; Dry etching; Optical device fabrication; Optical waveguides; Optical wavelength conversion; Photorefractive effect; Power generation; Protons; Wavelength division multiplexing; Nonlinear optics; optical frequency conversion; ridge waveguide;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.911008
