Accession Number : ADD014292

Title :   Low Loss Electro-Optic Modulator Mount.

Descriptive Note : Patent, Filed 21 Aug 84, patented 18 Jul 89,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Belek, Ronald E ; Mongeon, Robert J ; Laughman, Lanny M

Report Date : 18 Jul 1989

Pagination or Media Count : 5

Abstract : The crystal is solid CdTe or GaAs for modulating a laser beam. The mount comprises Al2O3 or BeO ceramic between the crystal and a U-shaped aluminum housing on three sides to provide low stray capacitance and high thermal conductivity to the cooled housing. A layer of lead between the ceramic and the housing enhances the acoustic damping of the structure. Electrodes are attached to the crystal, with lead used to enhanced dissipation of acoustic energy. In contacting flexible tabs on the electrodes with terminals no pressure or stress is transmitted to the crystal, thereby eliminating a problem of stress-induced birefringence. (Patents). (RRH)

Descriptors :   *ELECTROOPTICS, ACOUSTIC INSULATION, ACOUSTIC WAVES, ALUMINUM, CAPACITANCE, COOLING, CRYSTALS, DISSIPATION, ELECTRODES, HIGH RATE, HOUSING(DWELLINGS), LASER BEAMS, LAYERS, PATENTS, SIDES, THERMAL CONDUCTIVITY

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE