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Diamond Brillouin laser in the visible

Authors :
Zhenxu Bai
Robert J. Williams
Ondrej Kitzler
Soumya Sarang
David J. Spence
Yulei Wang
Zhiwei Lu
Richard P. Mildren
Source :
APL Photonics, Vol 5, Iss 3, Pp 031301-031301-5 (2020)
Publication Year :
2020
Publisher :
AIP Publishing LLC, 2020.

Abstract

Brillouin lasers providing extremely narrow-linewidth are emerging as a powerful tool for microwave photonics, coherent communications, quantum processors, and spectroscopy. So far, laser performance and applications have been investigated for a handful of select materials and using guided-wave structures such as micro-resonators, optical fibers, and chip-based waveguides. Here, we report a Brillouin laser based on free-space laser action in an extreme optical material. Continuous-wave lasing 167 GHz from a 532 nm pump is demonstrated in diamond using a doubly resonant ring cavity, generating a pump-limited output power of 11 W. The Brillouin gain coefficient is measured to be 79 cm GW−1 with a linewidth of 12 MHz. These properties, along with an exceptionally high Brillouin frequency and wide transmission range, make diamond Brillouin lasers a promising high-power source of narrow-linewidth output and mm-wave beat notes.

Details

Language :
English
ISSN :
23780967
Volume :
5
Issue :
3
Database :
Directory of Open Access Journals
Journal :
APL Photonics
Publication Type :
Academic Journal
Accession number :
edsdoj.82364ef0fdf14e2299511ebe23b62b96
Document Type :
article
Full Text :
https://doi.org/10.1063/1.5134907