Accession Number:

AD0757914

Title:

Acousto-Optic Isolator (AOI)

Descriptive Note:

Interim technical rept.

Corporate Author:

MARTIN MARIETTA AEROSPACE ORLANDO FL

Personal Author(s):

• Corcoran, Vincent J.
• Smith, William T.
• Martin, James M.

Report Date:

1972-10-22

Pagination or Media Count:

42.0

Abstract:

The effort has examined the isolation capabilities and overall operational efficiency of employing an acousto-optical frequency translator for the purposes of suppressing optical feedback generated instabilities in a laser MOPA chain. The operating principle is based on decoupling optical feedback from sustained laser oscillation by frequency translating the feedback such that it falls outside the gain bandwidths of any of the CO transition lines. Current progress has demonstrated successful optical feedback isolation, but, has experienced spurious acoustical and RF induced heating of the frequency translator which has limited its overall efficiency to approximately 10 percent. Author

Descriptors:

• *INFRARED RADIATION
• *OPTICAL RADAR
• ACOUSTIC EQUIPMENT
• ATTENUATORS
• FREQUENCY SHIFT
• GERMANIUM
• INFRARED LASERS
• MODULATORS
• OPTICAL EQUIPMENT

Subject Categories:

• Infrared Detection and Detectors
• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE