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Optics Letters

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  • Vol. 30, Iss. 4 — Feb. 15, 2005
  • pp: 406–408

High-energy saturable absorber mode-locked fiber laser system

Janet W. Lou and Marc Currie  »View Author Affiliations


Optics Letters, Vol. 30, Issue 4, pp. 406-408 (2005)
http://dx.doi.org/10.1364/OL.30.000406


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Abstract

We demonstrate a mode-locked erbium-doped fiber laser with a 1-µm InGaAs saturable absorber that produces 84-ps, 1-nJ transform-limited pulses. Measurements of the InGaAs multiple quantum well revealed a slow saturable absorber that is useful for passive mode locking. Optical fiber was added to extend the cavity and vary the repetition rate from 51 kHz to 5.4 MHz. The narrow spectral width of the laser output (<0.04 nm) permits amplification to 0.2 µJ/pulse with minimal pulse broadening. Pulse energies as large as 1.7 µJ can be achieved with pulse widths of <330 ps. Average powers of 0.5 W at megahertz repetition rates are demonstrated.

© 2005 Optical Society of America

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3560) Lasers and laser optics : Lasers, ring
(140.4050) Lasers and laser optics : Mode-locked lasers
(230.5590) Optical devices : Quantum-well, -wire and -dot devices

Citation
Janet W. Lou and Marc Currie, "High-energy saturable absorber mode-locked fiber laser system," Opt. Lett. 30, 406-408 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-4-406


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