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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 15 — Jul. 28, 2014
  • pp: 18537–18542

Passively Q-switched erbium-doped fiber laser using evanescent field interaction with gold-nanosphere based saturable absorber

Dengfeng Fan, Chengbo Mou, Xuekun Bai, Shaofei Wang, Na Chen, and Xianglong Zeng  »View Author Affiliations


Optics Express, Vol. 22, Issue 15, pp. 18537-18542 (2014)
http://dx.doi.org/10.1364/OE.22.018537


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Abstract

We demonstrate an all-fiber passively Q-switched erbium-doped fiber laser (EDFL) using a gold-nanosphere (GNS) based saturable absorber (SA) with evanescent field interaction. Using the interaction of evanescent field for fabricating SAs, long nonlinear interaction length of evanescent wave and GNSs can be achieved. The GNSs are synthesized from mixing solution of chloroauricacid (HAuCl4) and sodium citrate by the heating effects of the microfiber’s evanescent field radiation. The proposed passively Q-switched EDFL could give output pulses at 1562 nm with pulse width of 1.78 μs, a repetition rate of 58.1 kHz, a pulse energy of 133 nJ and a output power of 7.7 mW when pumped by a 980 nm laser diode of 237 mW.

© 2014 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3540) Lasers and laser optics : Lasers, Q-switched
(160.4330) Materials : Nonlinear optical materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 10, 2014
Revised Manuscript: July 14, 2014
Manuscript Accepted: July 15, 2014
Published: July 23, 2014

Citation
Dengfeng Fan, Chengbo Mou, Xuekun Bai, Shaofei Wang, Na Chen, and Xianglong Zeng, "Passively Q-switched erbium-doped fiber laser using evanescent field interaction with gold-nanosphere based saturable absorber," Opt. Express 22, 18537-18542 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-15-18537


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