Group delay locking of coherently combined broadband lasers

被引：30

作者：

Weiss, S. Benjamin ^{[1
]}

Weber, Mark E. ^{[1
]}

Goodno, Gregory D. ^{[1
]}

机构：

[1] Northrop Grumman Aerosp Syst, Redondo Beach, CA 90278 USA

来源：

OPTICS LETTERS | 2012年 / 37卷 / 04期

关键词：

BEAM; AMPLIFIERS; PHASE;

D O I：

10.1364/OL.37.000455

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a method for single-detector coherent sensing and automated coalignment of group delays in a coherently combined laser array, enabling robust coherent combining of broadband sources despite initial path mismatches exceeding the laser coherence length. The method is based on Fourier-domain filtering of the coherently combined laser beam to extract error signals, and it is equally applicable to controlling both spatial and temporal misalignments. (C) 2012 Optical Society of America

引用

页码：455 / 457

页数：3

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