23 February 2018 Parallel periodically poled LiNbO3 waveguides module for polarization diversity wavelength conversion and amplification
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Abstract
We have designed and developed a nonlinear-optic wavelength converter with periodically poled LiNbO3 (PPLN) waveguides for optical fiber communication systems. The wavelength conversion module comprises two parallel PPLN ridge waveguide devices for a polarization-independent operation. We demonstrate highly efficient wavelength conversions and amplifications based on a cascaded second harmonic generation (SHG) and difference frequency generation (DFG), and optical parametric amplifier (OPA). The wavelength conversion efficiencies and the signal gains more than 20 dB are achieved for both orthogonal transverse magnetic (TM) polarization and transverse electric (TE) polarization in the module.
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T. Kishimoto, K. Inafune, Y. Ogawa, N. Sekine, H. Murai, H. Sasaki, "Parallel periodically poled LiNbO3 waveguides module for polarization diversity wavelength conversion and amplification", Proc. SPIE 10535, Integrated Optics: Devices, Materials, and Technologies XXII, 105350B (23 February 2018); doi: 10.1117/12.2284762; https://doi.org/10.1117/12.2284762
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