VERY-LOW THRESHOLD WHISPERING-GALLERY-MODE MICROSPHERE LASER

Authors
SANDOGHDAR V TREUSSART F HARE J LEFEVRESEGUIN V RAIMOND JM HAROCHE S
Citation
V. Sandoghdar et al., VERY-LOW THRESHOLD WHISPERING-GALLERY-MODE MICROSPHERE LASER, Physical review. A, 54(3), 1996, pp. 1777-1780
Citations number
26
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
54
Issue
3
Year of publication
1996
Pages
1777 - 1780
Database
ISI
SICI code
1050-2947(1996)54:3<1777:VTWML>2.0.ZU;2-0
Abstract
We report on the realization of a whispering-gallery-mode laser based on neodymium-doped silica microspheres. Absorbed pump powers at thresh old are as low as 200 nW. The linear variation of the threshold with t he loss factor of the cavity mode has also been observed. We discuss t he potential of this system as a permanent microlaser operating with a few active ions at liquid-helium temperature.