Accession Number : ADD009767

Title :   Self-Detecting Optical Sensors.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Zuleeg,R

Report Date : 14 Jul 1982

Pagination or Media Count : 33

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.

Descriptors :   *Patent applications, *Pulsed lasers, *Pulse generators, *Signals, *Optical detectors, Short range(Distance), Signals, Avalanche diodes, Bipolar transistors, Heterojunctions, Self operation, Voltage, Circuits, Inventions

Subject Categories : Lasers and Masers
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE