Fundamental thermal noise in distributed feedback fiber lasers

被引：90

作者：

Foster, Scott ^{[1
]}

Tikhomirov, Alexei ^{[1
]}

Milnes, Mark ^{[1
]}

机构：

[1] Def Sci & Technol Org, Maritime Operat Div, Edinburgh 5111, Australia

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 2007年 / 43卷 / 5-6期

关键词：

distributed feedback lasers; laser noise; optical fiber lasers;

D O I：

10.1109/JQE.2007.894744

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A detailed analysis of fundamental thermal frequency noise in distributed feedback fiber lasers (DFB FL) is presented. An expression relating the laser frequency noise spectrum to the spectrum of thermal (temperature) fluctuations in the fiber, accounting for the nontrivial DFB FL mode shape, is derived. A new expression for the thermal fluctuation spectrum of single-mode optical fiber is derived which predicts high-frequency thermal noise 3 dB higher than previously published results. Theoretical predictions are compared against experimental measurements for a well characterized DFB FL. Anomalous 1 / f noise at low frequency is discussed.

引用

页码：378 / 384

页数：7

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