Linewidth enhancement factor measurement based on FM-modulated optical injection: application to rare-earth-doped active medium

被引：7

作者：

Thorette, Aurelien ^{[1
]}

Romanelli, Marco ^{[1
]}

Vallet, Marc ^{[1
]}

机构：

[1] Univ Rennes 1, CNRS, UMR 6251, Inst Phys Rennes, Campus Beaulieu, F-35042 Rennes, France

来源：

OPTICS LETTERS | 2017年 / 42卷 / 08期

关键词：

HIGH-PURITY MICROWAVE; SEMICONDUCTOR-LASERS; GENERATION;

D O I：

10.1364/OL.42.001480

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new method for measuring the linewidth enhancement factor of a laser is proposed. It is based on frequency-modulated optical injection, combined with dual-frequency laser operation. The linewidth enhancement factor a is deduced from the experimental data using a theoretical analysis based on a standard rate equation model. As the intracavity power is kept constant, the method frees the process from the thermal effects that are usually present in AM/FM techniques. Measurement of alpha = 0.28 +/- 0.04 in a diode-pumped Nd: YAG laser demonstrates that the method is well-suited for characterizing small values of alpha. (C) 2017 Optical Society of America

引用

页码：1480 / 1483

页数：4