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Second harmonic conversion from 1550 nm to 775 nm with an efficiency of 400% W-1 is demonstrated in a gallium phosphide (GaP) on oxide integrated photonic platform. The platform consists… Click to show full abstract
Second harmonic conversion from 1550 nm to 775 nm with an efficiency of 400% W-1 is demonstrated in a gallium phosphide (GaP) on oxide integrated photonic platform. The platform consists of doubly-resonant, phase-matched ring resonators with quality factors Q ∼ 104, low mode volumes V ∼ 30(λ/n)3, and high nonlinear mode overlaps. Measurements and simulations indicate that conversion efficiencies can be increased by a factor of 20 by improving the waveguide-cavity coupling to achieve critical coupling in current devices.
Keywords:
harmonic conversion;
conversion;
second harmonic;
gallium phosphide;
efficiency
Journal Title: Optics express
Year Published: 2018
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Journal Title: Optics express
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!