QUANTUM-LIMITED LINEWIDTH OF A BAD-CAVITY LASER

Authors
KUPPENS SJM VANEXTER MP WOERDMAN JP
Citation
Sjm. Kuppens et al., QUANTUM-LIMITED LINEWIDTH OF A BAD-CAVITY LASER, Physical review letters, 72(24), 1994, pp. 3815-3818
Citations number
20
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
72
Issue
24
Year of publication
1994
Pages
3815 - 3818
Database
ISI
SICI code
0031-9007(1994)72:24<3815:QLOABL>2.0.ZU;2-S
Abstract
We show experimentally that the quantum-limited linewidth of a laser c an be smaller than the conventional Schawlow-Townes limit when the gai n bandwidth is smaller than the cavity loss rate. Data obtained for a HeNe 3.39 mum laser confirm the theoretical result derived for the lin ewidth of a homogeneously broadened laser in the bad-cavity limit. We show how this result can be understood in terms of the group refractiv e index.