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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 16928–16933

Multiwavelength narrow linewidth erbium-doped fiber laser based on FP-LDs

Aiqin Zhang, Yanbing Jin, Xinhuan Feng, Jingjuan Zhou, Zhaohui Li, and Bai-ou Guan  »View Author Affiliations


Optics Express, Vol. 21, Issue 14, pp. 16928-16933 (2013)
http://dx.doi.org/10.1364/OE.21.016928


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Abstract

In this paper, we propose and demonstrate a technique to realize multiwavelength operation in erbium-doped fiber lasers (EDFLs) by inserting two Fabry Pérot laser diodes (FP-LDs) in the laser cavity respectively in cascaded and parallel way. The FP-LDs not only act as wavelength selection elements, but also offer optical gain or loss for the operation wavelengths in the laser cavity. The gains or losses for the oscillation wavelengths obtained from FP-LDs differ with adjustment of the driving current of the FP-LDs. Thus, the utilization of the FP-LDs in the laser cavity can introduce wavelength dependent gain or loss which can effectively suppress the competition caused by the homogeneous gain broadening of the erbium-doped fiber (EDF). As a result, 16-wavelength and 20-wavelength operation with a wavelength-spacing of 1.25 nm has been achieved respectively in the cascaded and parallel FP-LDs based EDFL schemes. The measured power fluctuation of each wavelength is smaller than 0.4dB for both EDFLs. Furthermore, the injection locking of the FP-LDs ensures a narrow linewidth of the EDFL output and the linewidth is estimated to be narrower than 100 MHz for the cascaded scheme based EDFL.

© 2013 OSA

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3520) Lasers and laser optics : Lasers, injection-locked

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 29, 2013
Revised Manuscript: June 20, 2013
Manuscript Accepted: June 30, 2013
Published: July 9, 2013

Citation
Aiqin Zhang, Yanbing Jin, Xinhuan Feng, Jingjuan Zhou, Zhaohui Li, and Bai-ou Guan, "Multiwavelength narrow linewidth erbium-doped fiber laser based on FP-LDs," Opt. Express 21, 16928-16933 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-14-16928


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