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

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7 Author(s)

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.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 1 )