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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 2 — Jan. 16, 2012
  • pp: 1896–1902

Performance of large aperture tapered fiber phase conjugate mirror with high pulse energy and 1-kHz repetition rate

Zhigang Zhao, Yantao Dong, Sunqiang Pan, Chong Liu, Jun Chen, Lixin Tong, Qingsong Gao, and Chun Tang  »View Author Affiliations


Optics Express, Vol. 20, Issue 2, pp. 1896-1902 (2012)
http://dx.doi.org/10.1364/OE.20.001896


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Abstract

A large aperture fused silica tapered fiber phase conjugate mirror is presented with a maximum 70% stimulated Brillouin scattering (SBS) reflectivity, which is obtained with 1 kHz repetition rate, 15 ns pulse width and 38 mJ input pulse energy. To the best of our knowledge, this is the highest SBS reflectivity ever reported by using optical fiber as a phase conjugate mirror for such high pulse repetition rate (1 kHz) and several tens of millijoule (mJ) input pulse energy. The influences of fiber end surface quality and pump pulse widths on SBS reflectivity are investigated experimentally. The results show that finer fiber end surface quality and longer input pulse widths are preferred for obtaining higher SBS reflectivity with higher input pulse energy. Double passing amplification experiments are also performed. 52 mJ pulse energy is achieved at 1 kHz repetition rate, with a reflected SBS pulse width of 1.5 ns and a M2 factor of 2.3. The corresponding peak power reaches 34.6 MW. Obvious beam quality improvement is observed.

© 2012 OSA

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(190.5040) Nonlinear optics : Phase conjugation
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Nonlinear Optics

History
Original Manuscript: November 23, 2011
Revised Manuscript: January 4, 2012
Manuscript Accepted: January 4, 2012
Published: January 12, 2012

Citation
Zhigang Zhao, Yantao Dong, Sunqiang Pan, Chong Liu, Jun Chen, Lixin Tong, Qingsong Gao, and Chun Tang, "Performance of large aperture tapered fiber phase conjugate mirror with high pulse energy and 1-kHz repetition rate," Opt. Express 20, 1896-1902 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-2-1896


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