Abstract

We experimentally demonstrate Raman lasing in a mm-sized CaF₂ disk, with an optical power output of the first Stokes sideband exceeding 100 mW in a near-continuous wave (CW) operation. The pump beam at a wavelength of 1.06 $\mathrm{\mu}$m is coupled to the whispering gallery modes of the disk with the use of a tapered glass fiber. With the pump beam coupled to one of the resonator modes, we observe the generation of the first and the second Stokes sidebands at wavelengths of 1.1 $\mathrm{\mu}$m and 1.14 $\mathrm{\mu}$m, respectively. The conversion efficiency from the pump laser beam to the generated sidebands is ∼10%. These results open up the prospect of using such mm-sized disks as compact, highly efficient ultrafast modulators with modulation frequencies as high as 10 THz.

© 2022 Optica Publishing Group

Ultrahigh-Q WGM microspheres from ZBLAN for the mid-IR band

Tatiana S. Tebeneva, Artem E. Shitikov, Oleg V. Benderov, Valery E. Lobanov, Igor A. Bilenko, and Alexander V. Rodin
Opt. Lett. 47(24) 6325-6328 (2022)

Monolithic multi-wavelength lasing from multi-sized microdisk lasers

Wai Yuen Fu, Yuk Fai Cheung, and Hoi Wai Choi
Opt. Lett. 47(24) 6397-6400 (2022)

Influence of surface roughness on the lasing characteristics of optically pumped thin-film GaN microdisks

Hui Zi, Yuk Fai Cheung, Benjamin Damilano, Eric Frayssinet, Blandine Alloing, Jean-Yves Duboz, Philippe Boucaud, Fabrice Semond, and Hoi Wai Choi
Opt. Lett. 47(6) 1521-1524 (2022)

Simple method for high average power supercontinuum generation based on Raman mode locking in a quasi-CW fiber laser oscillator

Li Wang, Hanwei Zhang, Xiaoming Xi, Peng Wang, Dan Zhang, Baolai Yang, Chen Shi, Xiaolin Wang, and Xiaojun Xu
Opt. Lett. 47(22) 5809-5812 (2022)

Ultralow-threshold Raman lasing with CaF₂ resonators

Ivan S. Grudinin and Lute Maleki
Opt. Lett. 32(2) 166-168 (2007)