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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 29 — Oct. 10, 2009
  • pp: 5514–5519

Single-frequency linearly polarized master-oscillator fiber power amplifier system and its application in high fill factor coherent beam combining

Yunfeng Qi, Chi Liu, Jun Zhou, Qihong Lou, Weibiao Chen, Jingxing Dong, and Yunrong Wei  »View Author Affiliations


Applied Optics, Vol. 48, Issue 29, pp. 5514-5519 (2009)
http://dx.doi.org/10.1364/AO.48.005514


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Abstract

In this paper we combine the master-oscillator power fiber amplifier (MOPFA), active phase- compensation, and beam-tilting techniques to demonstrate high fill factor coherent beam combining. First, we optimize a single-frequency, linearly polarized MOPFA system with high scalability and flexibility based on compact, high efficiency Yb-doped fiber amplifier chains. Second, we demonstrate high fill factor coherent beam combining of these MOPFA arrays at a 50 W level in the far field successfully. Last, the interference matrix of eight element arrays under an opened loop condition is investigated. Scaling the system to higher power can be expected by increasing the power per fiber chain and adding the number of laser channels.

© 2009 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3298) Lasers and laser optics : Laser beam combining
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 29, 2009
Revised Manuscript: September 13, 2009
Manuscript Accepted: September 16, 2009
Published: October 2, 2009

Citation
Yunfeng Qi, Chi Liu, Jun Zhou, Qihong Lou, Weibiao Chen, Jingxing Dong, and Yunrong Wei, "Single-frequency linearly polarized master-oscillator fiber power amplifier system and its application in high fill factor coherent beam combining," Appl. Opt. 48, 5514-5519 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-29-5514


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References

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