Brillouin Lasing with a CaF_2 Whispering Gallery Mode Resonator
Ivan S. Grudinin, Andrey B. Matsko, and Lute Maleki
TL;DR
This paper demonstrates Brillouin lasing in a high-Q CaF_2 whispering gallery mode resonator, achieving low threshold and opening avenues for microwave generation and sensing applications.
Contribution
First demonstration of stimulated Brillouin scattering and lasing in a CaF_2 whispering gallery mode resonator with ultra high Q.
Findings
Brillouin lasing threshold of 3.5 microwatt
Resonator pumped at 1064 nm
Potential for microwave generation and gyroscopes
Abstract
Stimulated Brillouin scattering with both pump and Stokes beams in resonance with whispering gallery modes of an ultra high Q CaF_2 resonator is demonstrated for the first time. The resonator is pumped with 1064 nm light and has a Brillouin lasing threshold of 3.5 microwatt. Potential applications include optical generation of microwaves and sensitive gyros.
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