Laser/amplifier/detector diode

Patent · Tue May 04 04:00:00 EDT 1982

OSTI ID:5059998

Redman, C M

A double-heterojunction diode fabricated on a single crystal fiber which is voltage and acoustically controlled so as to alternately be caused to be a laser, an optical amplifier, or a detector of optical signals. A preferred embodiment utilizes gallium arsenide (GaAs) and gallium aluminum arsenide (GaAlAs). The double-heterojunction diode when electronically powered with the right polarity becomes an injection amplifier, with the addition of an acousto-optic grating of suitable period for feedback becomes a laser, and with a suitably reversed potential and different acoustic period becomes a heterodyne detector. In a preferred embodiment, the device is utilized to insert frequency controlled coherent optical or infrared signals in both directions in a fiber waveguide, amplify those signals, and detect the heterodyne difference frequency.

• Assignee: EDB-82-145334
• Patent Number(s): US 4327962
• OSTI ID: 5059998
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
657005 -- Theoretical Physics-- Optics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACOUSTIC DETECTION
ACOUSTIC MEASUREMENTS
AMPLIFIERS
ARSENIC COMPOUNDS
ARSENIDES
CHARGED PARTICLE DETECTION
DETECTION
DIODE TUBES
ELECTROMAGNETIC RADIATION
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
FABRICATION
FIBER OPTICS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HETEROJUNCTIONS
JUNCTIONS
LASER RADIATION
LASERS
MEASURING INSTRUMENTS
MOTION
PNICTIDES
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
ROTATION
SEMICONDUCTOR JUNCTIONS
WAVEGUIDES