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Diamond Brillouin laser in the visible.

Authors :
Bai, Zhenxu
Williams, Robert J.
Kitzler, Ondrej
Sarang, Soumya
Spence, David J.
Wang, Yulei
Lu, Zhiwei
Mildren, Richard P.
Source :
APL Photonics; Mar2020, Vol. 5 Issue 3, p1-5, 5p
Publication Year :
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<superscript>−1</superscript> 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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
23780967
Volume :
5
Issue :
3
Database :
Complementary Index
Journal :
APL Photonics
Publication Type :
Academic Journal
Accession number :
142541198
Full Text :
https://doi.org/10.1063/1.5134907