Abstract
Rapid advances have taken place in the compression of optical pulses using self phase modulation. Following the first compression of femtosecond pulses to 30 femtoseconds by Shank et al.,1 Fujimoto et al.2 improved upon these results to compress a 70 femtosecond optical pulse to 16 femtoseconds. Shortly after that report, Halbout and Grischkowsky3 compressed a single pulse embedded in a comb of amplified pulses at a repetition rate of 500 Hz. Compression from 110 femtoseconds to 12 femtoseconds was reported. We report the compression of single amplified 40 femtosecond optical pulses to a duration of less than 8 femtoseconds at a repetition rate of 5 kHz. This pulse has a full width half maximum corresponding to 3.8 optical periods.
© 1985 Optical Society of America
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