Dual-frequency sweeping light source based on four-wave mixing in silicon-on-insulator nano-waveguide

Dun Qiao; Kang Li; Sivagunalan Sivanathan; Bethan Copner; Nigel Copner; Michael Campbell; Ben Hughes

doi:10.1117/12.2647370

11 January 2023 Dual-frequency sweeping light source based on four-wave mixing in silicon-on-insulator nano-waveguide

Dun Qiao, Kang Li, Sivagunalan Sivanathan, Bethan Copner, Nigel Copner, Michael Campbell, Ben Hughes

Proceedings Volume 12334, Emerging Applications in Silicon Photonics III; 1233407 (2023) https://doi.org/10.1117/12.2647370
Event: SPIE Photonex, 2022, Birmingham, United Kingdom

Abstract

Four-wave mixing (FWM) is a well-known technique to achieve all-optical control wavelength conversion. We propose a well-designed silicon nano-waveguide based on silicon-on-insulator (SOI) to achieve FWM conversion. Particularly, the original signal light continuously sweeps along the C band, and the generated idler light is correspondingly sweeping as the original signal is swept. The wavelengths of the idler and signal lights are symmetric with respect to the pump light wavelength. Simulation and experimental results of the FWM conversion properties are well-matched. With the pump light filtered out, a dual-frequency continuously sweeping laser source is achieved, which could be applied in dual-frequency scanning interferometry to eliminate dynamic errors in practical use.

Conference Presentation

Citation Download Citation

Dun Qiao, Kang Li, Sivagunalan Sivanathan, Bethan Copner, Nigel Copner, Michael Campbell, and Ben Hughes "Dual-frequency sweeping light source based on four-wave mixing in silicon-on-insulator nano-waveguide", Proc. SPIE 12334, Emerging Applications in Silicon Photonics III, 1233407 (11 January 2023); https://doi.org/10.1117/12.2647370

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