Presentation
17 March 2023 Quantum cascade laser frequency comb at λ ~5.3 μm with double-plasmon waveguide design
Richard Maulini, Sargis Hakobyan, Stéphane Blaser, Tobias Gresch, Antoine Muller
Author Affiliations +
Proceedings Volume PC12440, Novel In-Plane Semiconductor Lasers XXII; PC124400H (2023) https://doi.org/10.1117/12.2657987
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
We demonstrate a novel waveguide design for dispersion compensation in short wavelength quantum cascade lasers for frequency comb operation. The addition of two highly doped InP plasmon layers, above and below the active region, and the precise control of the distance between them and their dimensions, allows to engineer waveguide structures with low group velocity dispersion around any central wavelength between 4 μm and 6 μm, while keeping the optical losses low. Based on this design, we show high-performance frequency comb operation at 5.3 μm that exhibits up to 350 mW of output power, and operates in coherent comb mode up to 50ºC with a spectral width of ~50 cm-1.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard Maulini, Sargis Hakobyan, Stéphane Blaser, Tobias Gresch, and Antoine Muller "Quantum cascade laser frequency comb at λ ~5.3 μm with double-plasmon waveguide design", Proc. SPIE PC12440, Novel In-Plane Semiconductor Lasers XXII, PC124400H (17 March 2023); https://doi.org/10.1117/12.2657987
Advertisement
Advertisement
KEYWORDS
Frequency combs

Quantum cascade lasers

Waveguides

Dispersion

Heterojunctions

Laser bonding

Plasmons

Back to Top