Miniature Laser Acoustic Sensor

Period of Performance: 08/26/1998 - 07/30/2000

$747K

Phase 2 SBIR

Recipient Firm

Mission Research Corp.
735 State Street
Santa Barbara, CA 93101
Principal Investigator

Research Topics

Abstract

This proposal exploits a recent breakthrough in detecting acoustic signals based on laser remote sensing. Its great advantage lies in the ability to detect sound propagating though a distant volume of air. This leads to a number of unique capabilities for battlefield acoustics. the technical objective of the work proposed here is develop the laser transmitter. this is the enabling technology for a practical system. The plan of action is to build and test both short pulse and long pulse (i.e. pulse compression) laser waveforms. The short pulse waveform is considered the baseline solution, but pulse compression is an option - provided the sidelobes are acceptable. The work will be accomplished in two phases. First, we will build and test preliminary versions of the laser that generates the short pulse waveform, at reduced power, and identify the best candidate. Then we will finalize the construction and test of a unit that operates at full power and meets the requirement of a single-beam breadboard.