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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 18 — Sep. 15, 2012
  • pp: 3885–3887

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

Houkang Liu, Bing He, Jun Zhou, Jingxing Dong, Yunrong Wei, and Qihong Lou  »View Author Affiliations


Optics Letters, Vol. 37, Issue 18, pp. 3885-3887 (2012)
http://dx.doi.org/10.1364/OL.37.003885


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Abstract

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.

© 2012 Optical Society of America

OCIS Codes
(140.3298) Lasers and laser optics : Laser beam combining
(140.3538) Lasers and laser optics : Lasers, pulsed

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 22, 2012
Revised Manuscript: August 11, 2012
Manuscript Accepted: August 11, 2012
Published: September 14, 2012

Citation
Houkang Liu, Bing He, Jun Zhou, Jingxing Dong, Yunrong Wei, and Qihong Lou, "Coherent beam combination of two nanosecond fiber amplifiers by an all-optical feedback loop," Opt. Lett. 37, 3885-3887 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-18-3885


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