Experimental evidence for the thermal origin of 1/f frequency noise in erbium-doped fiber lasers

被引：58

作者：

Foster, Scott ^{[1
]}

Cranch, Geoffrey A. ^{[1
]}

Tikhomirov, Alexei ^{[1
]}

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 05期

关键词：

1; f noise; distributed feedback lasers; fibre lasers; TEMPERATURE; BEHAVIOR;

D O I：

10.1103/PhysRevA.79.053802

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present experimental evidence in support of the recent theoretical proposal that intrinsic 1/f frequency noise in short cavity erbium-doped fiber lasers is of thermal origin. We demonstrate that the power spectral density of frequency noise in distributed-feedback fiber lasers (DFB FL) exhibits predicted T-2 temperature dependence across all frequencies over a temperature range of almost 200 K. This temperature dependence is observed both in direct interferometric measurements of frequency noise in a single mode DFB FL and noninterferometric measurements of polarization-beat-frequency noise in a dual frequency DFB FL. It is also shown that frequency noise of orthogonal polarization modes in the dual frequency DFB FL is substantially correlated providing a strong indication of a common origin.

引用

页数：7