Low loss electro-optic modulator mount

Details Low loss electro-optic modulator mount Low loss electro-optic modulator mount

1984-08-21

1989-07-18

Moskowitz, Nelson

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

350392, 372 33, 372 36, H01S 100, G02B 530

Patent

active

048497193

ABSTRACT:
The crystal is solid CdTe or GaAs for modulating a laser beam. The mount comprises Al.sub.2 O.sub.3 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 enhance 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.

REFERENCES:
patent: 3322485 (1967-06-01), Williams
patent: 3653743 (1972-04-01), Kiefer et al.
patent: 3914021 (1975-10-01), Nishimura
patent: 3958862 (1976-05-01), Scibor-Rylski
patent: 4054362 (1977-10-01), Baues
patent: 4131911 (1978-12-01), Fujine et al.
patent: 4214819 (1980-07-01), Pohl et al.
patent: 4229079 (1980-10-01), Wayne et al.
patent: 4334734 (1982-06-01), Hareng et al.
AFWAL-TR-81-1190, "Modulated Coherent Source Development Project," Nov. 1981, Cover Page, Report Documentation Pages and pp. 31, 32, 33 and 34.

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