Abstract

To date most ultrashort optical pulses have been generated in the visible spectrum.1–3 The pulse widths in the near IR from neodymium laser systems at 1.06 μm are much longer. Even after two stages of pulse compression, the shortest pulse width generated at 1.06 μm is still only 200 fs.4 The problem with previous short pulse laser systems operating at 1.06 μm is that the pulse energy is limited by the stimulated Raman scattering in the optical fiber to ~20 nJ.5 This low pulse energy is not high enough to generate sufficient self-phase modulation to compress a pulse shorter than 200 fs.4

© 1989 Optical Society of America

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References

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