Coherent beam combination of two fiber amplifiers with multi-dithering technique

被引：0

作者：

马阎星 ^{[1
]}

司磊 ^{[1
]}

王小林 ^{[1
]}

周朴 ^{[1
]}

许晓军 ^{[1
]}

机构：

[1] College of Optoelectric Science and Engineering,National University of Defense Technology

来源：

OptoelectronicsLetters | 2009年 / 5卷 / 01期

关键词：

Coherent beam combination of two fiber amplifiers with multi-dithering technique;

D O I：

暂无

中图分类号：

TN25 [波导光学与集成光学];

学科分类号：

0702 ; 070207 ;

摘要：

Coherent beam combination of two W-level fiber amplifiers with multi-dithering technique is demonstrated.In the experiment,the master laser is split into two channels.Multi-dithering technique is used for phase control.One channel is modulated with a 100 kHz sine wave produced by signal generator,and DSP lock-in amplifier is used for electric signal processing in the feedback loop.When the phase control loop is off,the far field interference pattern is blurred and dynamic with 20% fringe contrast.When the feedback loop is closed,the far field interference pattern is clear and stable with 72% fringe contrast,and 75% coherent combination efficiency is achieved.

引用

页码：18 / 20

页数：3