Plural frequency oscillator employing multiple fiber-optic delay

Details Plural frequency oscillator employing multiple fiber-optic delay Plural frequency oscillator employing multiple fiber-optic delay

1979-03-23

1981-10-27

Grimm, Siegfried H.

Oscillators

Phase shift type

250227, 331 60, H03B 500, H03B 1700

Patent

active

042976561

ABSTRACT:
Stabilization of an oscillator, particularly an RF oscillator, is achieved by an arrangement employing a fiber optic delay line. The delay line has a Q defined by the relationship Q=2.pi.f.tau., where f is the oscillator operation frequency and .tau. is the length of the delay line. Opto/electronic and electro optic transducers are coupled between the electrical oscillator circuitry and the optical delay line for interfacing the electrical section of the RF oscillator with its optical section. This optic delay line may be configured as a single optical fiber where a single output frequency is desired, or it may be configured of a plurality of optical fibers of respectively different lengths, where plural output frequencies are to be produced.

REFERENCES:
patent: 4042891 (1977-08-01), Levine
patent: 4066981 (1978-01-01), Levine
patent: 4105950 (1978-08-01), Dingwall
Schaer et al; "GHz Fundamental Acoustic-Wave Oscillators"; Microwave Journal, vol. 20, No. 1, pp. 41-42, 44; Jan. 1977.

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