Accession Number:

ADA010472

Title:

Wideband Intermediate Laser Amplifier Techniques.

Descriptive Note:

Final rept. 10 Jan-15 Oct 74,

Corporate Author:

MARTIN MARIETTA AEROSPACE ORLANDO FLA

Personal Author(s):

• Martin,James M.
• Smith,William T.
• Crabbe,Ira C.

Report Date:

1975-04-01

Pagination or Media Count:

56.0

Abstract:

This contract falls in the area of laser radar transmitter technology, since it was an engineering study of a wideband intermediate stage laser amplifier, using laboratory hardware, to verify predicted performance, and arrive at a conceptual design for a practical device. This type of amplifier is needed for the implementation of several types of high resolution laser radar systems. The amplifier would be capable of amplifying frequency swept synthetic imaging radar waveforms of microseconds duration and 500 MHz sweep extent, generated by a master oscillator, to a level sufficient to drive a laser power amplifier. The conceptual design resulting from this study calls for a 200 torr laser gas pressure, a pulseRF gas discharge ionizationexcitation technique, and a closed cycle, flowing gas, transverse discharge, transverse cavity laser configuration in order to meet the waveform amplification requirements.

Descriptors:

• *OPTICAL RADAR
• *LASER MODULATORS
• *CARBON DIOXIDE LASERS
• *LASER AMPLIFIERS
• LASER CAVITIES
• ELECTROOPTICS
• EXCITATION
• FREQUENCY MODULATION
• WAVEFORMS
• COHERENT RADIATION
• OPTICAL WAVEGUIDES
• INFRARED LASERS
• LIGHT PULSES
• GAIN
• ELECTRIC DISCHARGES
• TRANSMITTERS
• BANDWIDTH
• GAS IONIZATION
• CHIRP FILTERS

Subject Categories:

• Lasers and Masers
• Optics
• Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE