QUANTUM-LIMITED LINEWIDTH OF A BAD-CAVITY LASER

被引：87

作者：

KUPPENS, SJM

VANEXTER, MP

WOERDMAN, JP

机构：

[1] Huygens Laboratory, University of Leiden, 2300 RA Leiden

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.72.3815

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show experimentally that the quantum-limited linewidth of a laser can be smaller than the conventional Schawlow-Townes limit when the gain bandwidth is smaller than the cavity loss rate. Data obtained for a HeNe 3.39 mum laser confirm the theoretical result derived for the linewidth of a homogeneously broadened laser in the bad-cavity limit. We show how this result can be understood in terms of the group refractive index.

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页码：3815 / 3818

页数：4

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