Efficient type II second harmonic generation in an indium gallium phosphide on insulator wire waveguide aligned with a crystallographic axis.
Opt Lett
; 46(7): 1490-1493, 2021 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-33793472
ABSTRACT
We theoretically and experimentally investigate type II second harmonic generation in III-V-on-insulator wire waveguides. We show that the propagation direction plays a crucial role and that longitudinal field components can be leveraged for robust and efficient conversion. We predict that the maximum theoretical conversion is larger than that of type I second harmonic generation for similar waveguide dimensions and reach an experimental conversion efficiency of 12%/W, limited by the propagation loss.
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MEDLINE
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En
Ano de publicação:
2021
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Article