Coherent beam combination of two nanosecond fiber amplifiers by an all-optical feedback loop

A passive coherent beam combination of two nanosecond amplifiers is realized by using an all-optical feedback loop. The width of the combined pulses is 9.7 ns, and the pulse repetition frequency is 2.023 MHz. With the least mismatch between pulse period and time of the cavity round trip in our loop,...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 2012-09, Vol.37 (18), p.3885-3887
Main Authors: Liu, Houkang, He, Bing, Zhou, Jun, Dong, Jingxing, Wei, Yunrong, Lou, Qihong
Format: Article
Language:English
Subjects:
Amplifiers
Beams (radiation)
Coherence
Feedback loops
Holes
Nanocomposites
Nanomaterials
Nanostructure
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A passive coherent beam combination of two nanosecond amplifiers is realized by using an all-optical feedback loop. The width of the combined pulses is 9.7 ns, and the pulse repetition frequency is 2.023 MHz. With the least mismatch between pulse period and time of the cavity round trip in our loop, the visibility of far-field coherent patterns is more than 71%. The dynamics of passive phase locking is studied, and the established time of phase locking of two pulsed amplifiers is at least 10 cavity round trips in the all-optical feedback loop.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.37.003885