Harmonic optical oscillator

Details Harmonic optical oscillator Harmonic optical oscillator

1987-10-19

1990-10-02

Roskoski, Bernard

Horology: time measuring systems or devices

Electrical time base

Solid state oscillating circuit type

368118, 331 941, G04F 800, G04F 500

Patent

active

049611194

ABSTRACT:
The Harmonic Optical Oscillator is a solid state clock on a microchip. Two solid state lasers of nearly identical frequency transmit beams into an optical waveguide. The two beams interfere with each other causing a modulation of the light amplitude in the waveguide. A light detector picks up the harmonic beat. Accuracy of at least 1/2 second a year (approximately 200 times better than today's quartz microchips) is expected.

REFERENCES:
patent: 4286838 (1981-09-01), Huignard
patent: 4482259 (1984-11-01), Facklam

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