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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 10 — Oct. 1, 2012
  • pp: 2819–2826

Formation and evolution of passively mode-locked fiber soliton lasers operating in a dual-wavelength regime

Dong Mao and Hua Lu  »View Author Affiliations


JOSA B, Vol. 29, Issue 10, pp. 2819-2826 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002819


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Abstract

The formation and evolution of dual-wavelength solitons in passively mode-locked fiber soliton lasers are investigated both numerically and experimentally. By solving the Ginzburg–Landau equation and taking the gain profile into account, mode-locked soliton emissions at 1532 and 1555 nm are achieved simultaneously. Numerical results show that the two solitons exhibit the same intensity and duration, indicating that the dual-wavelength pulses possess the soliton energy quantization effect. In the process of pulse–pulse collisions, two solitons pass through each other and maintain their properties, qualitatively distinct from single-wavelength solitons that never overlap each other. The dual-wavelength mode-locked operation evolves into single-wavelength mode locking with the decrease of the pumping strength. The dual-peak gain spectrum of erbium-doped fiber and the birefringence-induced cavity filtering effect play crucial roles in the formation of dual-wavelength solitons. Numerical results agree well with analytical solutions and experimental observations. Our study provides an optional method of measuring the fiber dispersion by means of the dual-wavelength solitons.

© 2012 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 7, 2012
Revised Manuscript: August 12, 2012
Manuscript Accepted: August 21, 2012
Published: September 19, 2012

Citation
Dong Mao and Hua Lu, "Formation and evolution of passively mode-locked fiber soliton lasers operating in a dual-wavelength regime," J. Opt. Soc. Am. B 29, 2819-2826 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-10-2819

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