Accession Number : ADD011657

Title :   Self-Detecting Optical Sensors.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Zuleeg,R ; Notthoff,J K

Report Date : 19 Mar 1985

Pagination or Media Count : 9

Abstract : A short-ranging laser system having an improved pulser which includes a drive pulse signal generator and a driver. The drive pulse signal generator is essentially a triggered bipolar avalanche transistor that outputs a drive pulse signal through a voltage shifting circuit to the driver. The driver is essentially two parallel-connected power MOSFETs that output a driver pulse to a GaAs heterojunction laser diode. By circuit design, the deadtime plateau is substantially reduced so that the laser return energy homodynes with the still active laser to produce a detectable output for a target within 5 meters. (Author)

Descriptors :   *PATENTS, *AVALANCHE DIODES, *BIPOLAR TRANSISTORS

Subject Categories : Electrical and Electronic Equipment
      Lasers and Masers
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE