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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 18 — Aug. 29, 2011
  • pp: 17647–17652

83 W, 3.1 MHz, square-shaped, 1 ns-pulsed all-fiber-integrated laser for micromachining

Kivanç Özgören, Bülent Öktem, Sinem Yilmaz, F. Ömer Ilday, and Koray Eken  »View Author Affiliations


Optics Express, Vol. 19, Issue 18, pp. 17647-17652 (2011)
http://dx.doi.org/10.1364/OE.19.017647


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Abstract

We demonstrate an all-fiber-integrated laser based on off-the-shelf components producing square-shaped, 1 ns-long pulses at 1.03 μm wavelength with 3.1 MHz repetition rate and 83 W of average power. The master-oscillator power-amplifier system is seeded by a fiber oscillator utilizing a nonlinear optical loop mirror and producing incompressible pulses. A simple technique is employed to demonstrate that the pulses indeed have a random chirp. We propose that the long pulse duration should result in more efficient material removal relative to picosecond pulses, while being short enough to minimize heat effects, relative to nanosecond pulses commonly used in micromachining. Micromachining of Ti surfaces using 0.1 ns, 1 ns and 100 ns pulses supports these expectations.

© 2011 OSA

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3390) Lasers and laser optics : Laser materials processing
(140.4050) Lasers and laser optics : Mode-locked lasers

ToC Category:
Laser Microfabrication

History
Original Manuscript: July 11, 2011
Revised Manuscript: August 6, 2011
Manuscript Accepted: August 9, 2011
Published: August 23, 2011

Citation
Kivanç Özgören, Bülent Öktem, Sinem Yilmaz, F. Ömer Ilday, and Koray Eken, "83 W, 3.1 MHz, square-shaped, 1 ns-pulsed all-fiber-integrated laser for micromachining," Opt. Express 19, 17647-17652 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-18-17647


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References

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