Stanton, E.
, Chiles, J.
, Nader, N.
, Moody, G.
, Volet, N.
, Chang, L.
, Bowers, J.
, Nam, S.
and Mirin, R.
(2020),
Second harmonic generation in GaAs-on-insulator waveguides fabricated at the wafer-scale, Optics Express, [online], https://doi.org/10.1364/OE.389423
(Accessed March 13, 2025)
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Second harmonic generation in GaAs-on-insulator waveguides fabricated at the wafer-scale
Published
Author(s)
, , , Galan Moody, Nicolas Volet, Lin Chang, John E. Bowers, ,
Abstract
Second harmonic generation (SHG) is demonstrated with unprecedented efficiency for a single-pass device. Modal phase-matching in GaAs-on-insulator waveguides is used to convert a 2.0 µm TE pump to a 1.0 µm TM signal with an efficiency of 40 W−1 in a length of 2.9 mm. The FWHM bandwidth of the signal is 0.5 nm, and efficient SHG is demonstrated over a temperature range of 45 ◦C. Devices are fabricated on 76 mm wafers with high uniformity and the loss at the signal wavelength is reduced by minimizing the surface defect states. The GaAs-on-insulator waveguides will enable an integrated f-2f self-referencing system through integration with SiN waveguides.Citation
Optics Express
Volume
28
Issue
7
Pub Type
Journals
Download Paper
Keywords
nonlinear optics, waveguides, semiconductors
Citation
Issues
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Created March 18, 2020, Updated May 8, 2023