A Short Pulse-Width Laser For Underwater Applications

Michael B. Rankin; Gerald D. Ferguson

doi:10.1117/12.956854

10 November 1978 A Short Pulse-Width Laser For Underwater Applications

Michael B. Rankin, Gerald D. Ferguson

Proceedings Volume 0160, Ocean Optics V; (1978) https://doi.org/10.1117/12.956854
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

Abstract

Pulse transmission mode (PTM) Q-Switching of an Nd:YAG oscillator was investigated for use in airborne laser bathymetry system transmitters. Peak powers of 4.7 to 6.3 MW were generated at 1.06 μm at repetition rates up to 50 Hz with a pump energy of 6.19 joules. Frequency doubling with CD*A produced a peak power of 2.46 MW at 0.532 µm with a conversion efficiency of 52%. Pulse widths of 6 nanoseconds were obtained at 1.06 µm, and 5 nanoseconds at 0.532 µm. The pulse width was limited by the commutation time of the Q-switch driver. Operation at increased PRF is also discussed.

Citation Download Citation

Michael B. Rankin and Gerald D. Ferguson "A Short Pulse-Width Laser For Underwater Applications", Proc. SPIE 0160, Ocean Optics V, (10 November 1978); https://doi.org/10.1117/12.956854

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