Accession Number : ADA289950

Title :   A Compact Universal Power Supply for Laser Diodes.

Descriptive Note : Interim rept. Feb 93-Jul 94,

Corporate Author : ARMSTRONG LAB BROOKS AFB TX OCCUPATIONAL AND ENVIRONMENTAL HEALTH DIRECTORATE

Personal Author(s) : Noojin, Gary D. ; Hammer, Daniel X. ; Messick, Floyd ; Robinson, William ; Josephson, Jessica L.

PDF Url : ADA289950

Report Date : SEP 1994

Pagination or Media Count : 21

Abstract : A compact universal power supply for laser diodes was designed and built. The power source will supply current for laser diodes with forward operating current up to approximately 350 milliamps (mA). The power supply has a feedback stage, a slow start circuit, ac transient suppression, and digital optical power meter. The power supply is based upon a Toshiba design, with modifications in the feedback loop to provide utility for a wide range of laser diodes. The power supply was built into a compact unit and tested on: a Toshiba TOLD9200 visible laser diode with optical power of 3 milliwatts (mW) at an operating current of approximately 75 mA; an OKi OL308A-75 high power infrared laser diode with optical power of 80mW at an operating current of approximately 220 mA; and a Sharp near infrared laser diode with optical power of 3 mW at an operating current of approximately 57 mA.

Descriptors :   *DIODES, *LASERS, *POWER SUPPLIES, TRANSIENTS, DIGITAL SYSTEMS, OPTICAL PROPERTIES, ALTERNATING CURRENT, SEMICONDUCTORS, INFRARED LASERS, FEEDBACK, CIRCUITS, RANGE(EXTREMES), LOOPS, SUPPRESSION, POWER METERS.

Subject Categories : Electrical and Electronic Equipment
      Inorganic Chemistry
      Physical Chemistry
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE