Milliwatt-peak-power pulse characterization at 155 µm by wavelength-conversion frequency-resolved optical gating
- 15 May 2002
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 27 (10) , 863-865
- https://doi.org/10.1364/ol.27.000863
Abstract
A novel wavelength-conversion configuration based on four-wave mixing in an optical fiber has been used to generate a frequency-resolved optical gating (FROG) trace identical to that obtained from second-harmonic generation (SHG). The use of an optical fiber waveguide permits enhanced measurement sensitivity compared with that of conventional SHG–FROG and has been used for complete characterization of 1-mW peak-power picosecond pulses at from an unamplified semiconductor laser diode gain switched at 10 GHz.
Keywords
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