Mid-infrared difference-frequency generation in AlGaAs-on-insulator waveguides

Magnus L. Madsen*, Emil Z. Ulsig, Sebastian Folsach, Pedro H. Godoy, Eric J. Stanton, Nicolas Volet

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Abstract

A design study is presented for difference-frequency generation (DFG) to the mid-infrared (MIR) at 2.3 µm in AlGaAs waveguides heterogeneously integrated on silicon. Perfect phase matching (PhM) is achieved in simulations by engineering the dimensions of the waveguide and by tuning the wavelengths of the input sources. An optimal design of the waveguide is found with a width of 1196 nm and height of 146 nm with a length of about 5 mm. We expect a signal output power of about 1 mW at 2389 nm and a wavelength range from 2231 to 2574 nm by the use of tunable sources around 940 and 1550 nm. The tolerance of the input wavelengths and waveguide dimensions required for perfect PhM is also estimated showing the feasibility of the fabrication. This offers a promising design for a compact MIR source on a chip to be used for gas sensing, in particular for carbon monoxide and ammonia, and for DFG of single photons to the C-band.

OriginalsprogEngelsk
TidsskriftJournal of the Optical Society of America B: Optical Physics
Vol/bind40
Nummer7
Sider (fra-til)1742-1748
ISSN0740-3224
DOI
StatusUdgivet - jul. 2023

Fingeraftryk

Dyk ned i forskningsemnerne om 'Mid-infrared difference-frequency generation in AlGaAs-on-insulator waveguides'. Sammen danner de et unikt fingeraftryk.

Citationsformater