We are excited to announce that our paper “Widely tunable and narrow-linewidth chip-scale lasers from near-ultraviolet to near-infrared wavelengths” has been finally published in Nature Photonics!
In this work led by the PhD candidate Mateus Corato Zanarella under the supervision of Prof. Michal Lipson, our team demonstrated the first tunable and narrow-linewidth chip-scale lasers for wavelengths shorter than red, down to record-short 404 nm (near-ultraviolet). By combining micrometer-scale silicon nitride resonators and commercial Fabry-Perot laser diodes, we built inexpensive lasers that fit on a fingertip with performance only previously achieved in large and expensive state-of-the-art benchtop lasers. Our integrated platform enables lasers of colors from near-ultraviolet to near-infrared in a single photonic chip, with coarse tuning up to 12.5 nm, mode-hop-free fine tuning up to 33.9 GHz, intrinsic linewidths down to a few kHz, fiber-coupled powers up to 10 mW, tuning speeds up to 267 petahertz/s, and side-mode suppression ratios above 35 dB.
Our chip-scale lasers stand out as powerful tools for the next generation of visible-light technologies, with impactful consequences in fields such as quantum information, laser displays, biosensing, underwater ranging, and visible-light communications.
To find out more, please check out the full article in one of the following links: https://www.nature.com/articles/s41566-022-01120-w or https://rdcu.be/c2aFw
Mateus thanks his co-authors Dr. Andres Gil-Molina, Prof. Xingchen Ji, Dr. Min Chul Shin and Prof. Aseema Mohanty for their support and contribution to the work.
