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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 9 — May. 1, 2014
  • pp: 2695–2698

Diffraction-limited, 10-W, 5-ns, 100-kHz, all-fiber laser at 1.55  μm

I. Pavlov, E. Dülgergil, E. Ilbey, and F. Ö. Ilday  »View Author Affiliations


Optics Letters, Vol. 39, Issue 9, pp. 2695-2698 (2014)
http://dx.doi.org/10.1364/OL.39.002695


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Abstract

This Letter reports on an all-fiber-integrated master-oscillator, power amplifier system at 1.55 μm producing 5-ns, 100-μJ pulses. These pulses are generated at a 100 kHz repetition rate, corresponding to 10 W of average power. The seed source is a low-power, current-modulated, single-frequency, distributed feedback semiconductor laser. System output is obtained from a standard single-mode fiber (Corning SMF-28). Consequently, the beam is truly diffraction limited, which was independently proven by M 2 measurements. Further increase of peak power is limited by onset of significant spectral broadening due to nonlinear effects, primarily four-wave mixing. Numerical simulations based on six-level rate equations with full position- and time-dependence were developed to model propagation of pulses through the amplifier chain. This capability allows minimization of the amplified spontaneous emission, which can be directly measured using a fast acousto-optic modulator to gate the pulses.

© 2014 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 30, 2013
Revised Manuscript: March 25, 2014
Manuscript Accepted: March 25, 2014
Published: April 25, 2014

Citation
I. Pavlov, E. Dülgergil, E. Ilbey, and F. Ö. Ilday, "Diffraction-limited, 10-W, 5-ns, 100-kHz, all-fiber laser at 1.55  μm," Opt. Lett. 39, 2695-2698 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-9-2695


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