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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 11, Iss. 9 — Sep. 1, 2013
  • pp: 091402–

All-fiber, high-average-power nanosecond laser based on core-diameter adjustment

Songtao Du, Ziwei Wang, Zhaokun Wang, Jing He, Jun Zhou, and Qihong Lou  »View Author Affiliations


Chinese Optics Letters, Vol. 11, Issue 9, pp. 091402- (2013)


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Abstract

Core-diameter adjustment, in analogy to doping management, is proposed in this letter for balancing thermal load and nonlinear effects. In this scheme, the core-to-cladding ratio increases with increasing core diameter along the direction of signal and pump propagation. An all-fiber-integrated Yb-doped master oscillator power amplification (MOPA) is successfully demonstrated. Two segments of fiber with different core diameters but same inner-cladding diameters and doping levels are spliced together and used as gain fibers in the last stage. A maximum average output power of 200 W at an overall slope efficiency of 71% is achieved from the MOPA with a pulse energy of 2 mJ and peak power as high as 80 kW.

© 2013 Chinese Optics Letters

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

Citation
Songtao Du, Ziwei Wang, Zhaokun Wang, Jing He, Jun Zhou, and Qihong Lou, "All-fiber, high-average-power nanosecond laser based on core-diameter adjustment," Chin. Opt. Lett. 11, 091402- (2013)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-11-9-091402

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