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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 23, Iss. 2 — Jan. 15, 1998
  • pp: 123–125

Stable multigigahertz pulse-train formation in a short-cavity passively harmonic mode-locked erbium/ytterbium fiber laser

B. C. Collings, K. Bergman, and W. H. Knox  »View Author Affiliations


Optics Letters, Vol. 23, Issue 2, pp. 123-125 (1998)
http://dx.doi.org/10.1364/OL.23.000123


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Abstract

We demonstrate a short-cavity erbium–ytterbium fiber laser that is passively mode locked by a saturable Bragg reflector with a fundamental repetition rate of 235 MHz . The laser operates in the soliton regime and under passive harmonic mode locking with 11 pulses in the cavity and produces output pulse trains at 2.6 GHz with transform-limited 270-fs pulses and 1.6 mW of average power. Within the cavity the multiple pulses form a stable pattern with fixed, nearly equal pulse-to-pulse temporal spacings, causing the output pulse train to have timing offsets of less than 15 ps. A slow gain-recovery model is proposed to explain the pulse-train self-organization.

© 1998 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2410) Fiber optics and optical communications : Fibers, erbium
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(140.3510) Lasers and laser optics : Lasers, fiber
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(320.0320) Ultrafast optics : Ultrafast optics

Citation
B. C. Collings, K. Bergman, and W. H. Knox, "Stable multigigahertz pulse-train formation in a short-cavity passively harmonic mode-locked erbium/ytterbium fiber laser," Opt. Lett. 23, 123-125 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-2-123

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