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

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      Author(s)
      Özgören, Kıvanç
      Öktem, Bülent
      Yılmaz, Sinem
      İlday, F. Ömer
      Eken, K.
      Date
      2011-08-29
      Source Title
      Optics Express
      Electronic ISSN
      1094-4087
      Publisher
      Optical Society of America
      Volume
      19
      Issue
      18
      Pages
      17647 - 17652
      Language
      English
      Type
      Article
      Item Usage Stats
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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 mu m 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. (C) 2011 Optical Society of America
      Keywords
      Noise-like pulse
      Normal dispersion
      Ring laser
      Femtosecond
      Generation
      Permalink
      http://hdl.handle.net/11693/13383
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.19.017647
      Collections
      • Advanced Research Laboratories (ARL) 35
      • Department of Physics 2550
      • Institute of Materials Science and Nanotechnology (UNAM) 2258
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