14 July 1988 Laser Pulse Stretching Via Enhanced Closed Loop Control With Slow Q-Switching
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In testing a holographic particle track recording system for the Fermilab 15 foot bubble chamber, it was shown that the peak power of Q-switched laser pulses (50ns duration) at the required energy gave rise to boiling during the chamber expansion. A pulse stretching technique is described which was developed to reduce the peak power. Applied to a ruby laser (oscillator and three amplifiers) with a maximum Q-switched output of 30J, pulses of up to 10-μs duration with coherence up to and exceeding 11 m at 2.5μs were produced. The considerably increased coherence length will find applications in many fields of pulsed holography, and its use with fiber optics is particularly promising.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jon Kyle Hawkins, Jon Kyle Hawkins, William A. Williams, William A. Williams, } "Laser Pulse Stretching Via Enhanced Closed Loop Control With Slow Q-Switching", Proc. SPIE 0927, Wave Propagation and Scattering in Varied Media, (14 July 1988); doi: 10.1117/12.945836; https://doi.org/10.1117/12.945836

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