400%/W second harmonic conversion efficiency in 14 µm-diameter gallium phosphide-on-oxide resonators.
Opt Express
; 26(26): 33687-33699, 2018 Dec 24.
Article
em En
| MEDLINE
| ID: mdl-30650802
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 â¼ 104, low mode volumes V â¼ 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.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article