Laser clock

Details Laser clock Laser clock

1983-05-26

1984-11-13

Miska, Vit W.

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

368156, 372 32, G04F 800, G04F 500

Patent

active

044822596

ABSTRACT:
A laser clock includes a linear laser in one embodiment of the clock and a ring laser gyro in the other embodiment. The linear laser is frequency stabilized and utilizes a single active medium in the form of a low pressure gas, such as He-Ne, with a Doppler broadened gain curve. The ring laser gyro is a four frequency laser with a Faraday rotor. Detector and electronic circuitry associated with the laser of each embodiment detect a beat frequency and converts it to a clock signal.

REFERENCES:
patent: 3462708 (1969-08-01), McClure
patent: 3597088 (1971-08-01), Catherin
patent: 3627425 (1971-12-01), Doyle
patent: 3786681 (1974-01-01), Kiehn
patent: 3851973 (1974-12-01), Macek
patent: 3867034 (1975-02-01), Aronowitz
patent: 4006989 (1977-02-01), Andringa
patent: 4110045 (1978-08-01), Smith, Jr. et al.
patent: 4121178 (1978-10-01), Schlossberg
patent: 4277173 (1981-07-01), Ljung et al.
Smith et al., "Biasing the Raytheon Four-Frequency Ring Laser Gyroscope", SPIE, vol. 157 (1978), pp. 21-29.
Facklam, "Ultra-Stable Laser Clock", Abstract of Oral Presentation Given at Minisymposium of AIAA held at Air Force Institute of Technology, Wright-Patterson AFB, Ohio, on Mar. 23, 1982. The Abstract was Distributed to Attendees on Mar. 23, 1982.

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