Patent
1989-12-28
1991-04-30
Moskowitz, Nelson
350 9614, G02B 2742, H01S 310
Patent
active
050112643
ABSTRACT:
An optical modulator for generating an amplitude modulated optical signal. A signal generator generates an optical signal that is optically coupled to a tunable filter which shares a common optical axis with the signal generator. The tunable filter wavelength response varies in response to an electrical input control signal thereby providing an output amplitude modulated optical signal. An optical isolator is located between and shares a common optical axis with the signal generator and the tunable filter. The optical isolator is for preventing optical signals originating at the filter, traveling toward the signal generator, from impinging on the signal generator.
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Cordero, R. F.; "Thin Film Periodic-Waveguide Electro-Optic Switches and Amplitude Modulators . . . "; Wave Electron., vol. 3, #2, pp. 137-143, 1/78, abstract only provided.
"Sidelobe Suppression in Corrugated Waveguide Filters", by Cross and Kogelnik, Optics Letters, vol. I, No. 1, p. 43, Jul. 1977.
Bradley Eric M.
Mathis Ronald F.
General Dynamics Corp., Electronics Divn.
Moskowitz Nelson
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