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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 9, Iss. 7 — Jul. 10, 2011
  • pp: 071401–071401

High-powered millijoule pulse energy Tm3+-doped fiber amplifier at 2.05 \mu m

Renlai Zhou, Youlun Ju, Yunjun Zhang, and Yuezhu Wang  »View Author Affiliations


Chinese Optics Letters, Vol. 9, Issue 7, pp. 071401-071401 (2011)


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Abstract

A high-powered millijoule pulse energy Tm3+-doped fiber amplifier seeded with a Q-switched operation of Tm (4 at.-%), Ho (0.4 at.-%):YVO4 laser is reported. The output characteristics of the amplified laser are studied at the coupled powers of 0.266, 1.24, and 2.65 W. Maximum output power up to 15.7 W is at 10-kHz repetition rate. Nonlinear effects are not observed from the emitting spectrum and the full-width at half-maximum (FWHM) of the pulse duration is reduced from 40.1 to 25.9 ns at 1.57-mJ pulse energy. The beam quality factor M2x=1.9\pm 0.03, M2y=2.1\pm 0.02 at the output power of 14.5 W is measured using the traveling knife-edge method.

© 2011 Chinese Optics Letters

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2390) Fiber optics and optical communications : Fiber optics, infrared
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3280) Lasers and laser optics : Laser amplifiers

Citation
Renlai Zhou, Youlun Ju, Yunjun Zhang, and Yuezhu Wang, "High-powered millijoule pulse energy Tm3+-doped fiber amplifier at 2.05 \mu m," Chin. Opt. Lett. 9, 071401-071401 (2011)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-9-7-071401

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