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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 16494–16503

Parameter space for the collective laser coupling in the laser fusion driver based on the concept of fiber amplification network

Zhihua Huang, Honghuan Lin, Dangpeng Xu, Mingzhong Li, Jianjun Wang, Ying Deng, Rui Zhang, Yongliang Zhang, Xiaocheng Tian, and Xiaofeng Wei  »View Author Affiliations


Optics Express, Vol. 21, Issue 14, pp. 16494-16503 (2013)
http://dx.doi.org/10.1364/OE.21.016494


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Abstract

Collective laser coupling of the fiber array in the inertial confinement fusion (ICF) laser driver based on the concept of fiber amplification network (FAN) is researched. The feasible parameter space is given for laser coupling of the fundamental, second and third harmonic waves by neglecting the influence of the frequency conversion on the beam quality under the assumption of beam quality factor conservation. Third harmonic laser coupling is preferred due to its lower output energy requirement from a single fiber amplifier. For coplanar fiber array, the energy requirement is around 0.4J with an effective mode field diameter of around 500μm while maintaining the fundamental mode operation which is more than one order of magnitude higher than what can be achieved with state-of-the-art technology. Novel waveguide structure needs to be developed to enlarge the fundamental mode size while mitigating the catastrophic self-focusing effect.

© 2013 OSA

OCIS Codes
(140.3290) Lasers and laser optics : Laser arrays
(080.2468) Geometric optics : First-order optics
(140.3298) Lasers and laser optics : Laser beam combining
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 22, 2013
Revised Manuscript: June 11, 2013
Manuscript Accepted: June 11, 2013
Published: July 2, 2013

Citation
Zhihua Huang, Honghuan Lin, Dangpeng Xu, Mingzhong Li, Jianjun Wang, Ying Deng, Rui Zhang, Yongliang Zhang, Xiaocheng Tian, and Xiaofeng Wei, "Parameter space for the collective laser coupling in the laser fusion driver based on the concept of fiber amplification network," Opt. Express 21, 16494-16503 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-14-16494


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