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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 24 — Nov. 21, 2011
  • pp: 24507–24515

Direct observation of two-color pulse dynamics in passively synchronized Er and Yb mode-locked fiber lasers

Wei-Wei Hsiang, Wei-Chih Chiao, Chia-Yi Wu, and Yinchieh Lai  »View Author Affiliations

Optics Express, Vol. 19, Issue 24, pp. 24507-24515 (2011)

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We report direct experimental observation of interesting pulse synchronization dynamics in a cavity-combined Er and Yb mode-locked fiber lasers by measuring the relative position between the two-color pulses in the shared fiber section. The influence of the 1.03 μm pulse on the 1.56 μm single pulse as well as bound soliton pairs can be clearly identified as an effective phase modulation through the XPM effect with the walk-off effect taken into account. For the 1.56 μm single pulse under synchronization, the dependence of the relative position variation and the center wavelength shift on the cavity mismatch detuning is found analogous to the typical characteristics of FM mode-locked lasers with modulation frequency detuning. Moreover, depending on the cavity mismatch, the passively synchronized 1.56 μm bound soliton pairs are found to exhibit two different dynamical behaviors, i.e., phase-locked (in-phase) as well as non-phase-locked. The physical origins for these two kinds of bound soliton pairs are investigated experimentally by disclosing their locations with respective to the copropagating 1.03 μm pulse.

© 2011 OSA

OCIS Codes
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4050) Lasers and laser optics : Mode-locked lasers
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 12, 2011
Revised Manuscript: November 2, 2011
Manuscript Accepted: November 3, 2011
Published: November 15, 2011

Wei-Wei Hsiang, Wei-Chih Chiao, Chia-Yi Wu, and Yinchieh Lai, "Direct observation of two-color pulse dynamics in passively synchronized Er and Yb mode-locked fiber lasers," Opt. Express 19, 24507-24515 (2011)

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