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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 17 — Aug. 15, 2011
  • pp: 16303–16308

Coexistence of unequal pulses in a normal dispersion fiber laser

Dong Mao, Xueming Liu, Leiran Wang, Hua Lu, and Lina Duan  »View Author Affiliations


Optics Express, Vol. 19, Issue 17, pp. 16303-16308 (2011)
http://dx.doi.org/10.1364/OE.19.016303


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Abstract

We experimentally demonstrate unequal pulses delivered from an erbium-doped fiber (EDF) laser with net-normal dispersion. Two types of pulses with different durations, energies, and spectra coexist in the same ring cavity. The output spectrum exhibits a broadband base that corresponds to the main pulse and a small rectangular lump that corresponds to the additional satellite pulse. With the enhancement of pump power, the intensity of main pulse almost keeps unchanged while the satellite pulse nearly increases linearly. Based on experimental results, it is indicated that two different pulse shaping mechanisms coexist in laser cavity, where the nonlinear polarization rotation (NPR) and spectral filtering (SF) effect contribute to the formation of main pulse and satellite pulse, respectively.

© 2011 OSA

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(250.5530) Optoelectronics : Pulse propagation and temporal solitons

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 6, 2011
Revised Manuscript: July 16, 2011
Manuscript Accepted: July 24, 2011
Published: August 10, 2011

Citation
Dong Mao, Xueming Liu, Leiran Wang, Hua Lu, and Lina Duan, "Coexistence of unequal pulses in a normal dispersion fiber laser," Opt. Express 19, 16303-16308 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-17-16303


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