Accession Number:

AD0294844

Title:

COHERENT OPTICAL SURVEILLANCE DEVICES

Descriptive Note:

Corporate Author:

ELECTRO-OPTICAL SYSTEMS INC PASADENA CALIF

Personal Author(s):

• BRADBURY,RICHARD E.

Report Date:

1962-12-01

Pagination or Media Count:

1.0

Abstract:

A gas cell phase shifter has been constructed and evaluated in a Twyman-Green interferometer, with both a low pressure mercury lamp 5461 Angstroms and a helium-neon laser 6328 Angstroms as sources. Measurements of phase shift by fringe displacement correspond well with expected results. Author

Descriptors:

• *PHASE SHIFT CIRCUITS
• ATTENUATION
• BEAMS(ELECTROMAGNETIC)
• BEAMS(STRUCTURAL)
• CALIBRATION
• EQUATIONS
• HELIUM
• INTERFERENCE
• INTERFEROMETERS
• LASERS
• LIGHT
• MATHEMATICAL ANALYSIS
• MERCURY LAMPS
• NEON
• PHASE DISTORTION
• PHOTOMULTIPLIER TUBES
• POWER DIVIDERS
• VOLUME

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE