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.
Original language | English (US) |
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Pages (from-to) | 33687-33699 |
Number of pages | 13 |
Journal | Optics Express |
Volume | 26 |
Issue number | 26 |
DOIs | |
State | Published - Dec 24 2018 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics