Ultra-stable superconducting cavity maser oscillator

Details Ultra-stable superconducting cavity maser oscillator Ultra-stable superconducting cavity maser oscillator

1987-10-19

1989-03-21

Grimm, Siegfried H.

Oscillators

Molecular or particle resonant type

330 4, H01S 102

Patent

active

048147281

ABSTRACT:
An ultra-stable superconducting triple cavity ruby maser oscillator (10) is obtained by providing the oscillator with a superconducting quantum interference device (SQUID) (50), which measures the magnetic field at the ruby (14) and compensates for changes by adjusting the RF pump signal amplitude (42), thereby attaining stabilities of about four orders of magnitude greater than presently attainable.

REFERENCES:
Smirnova et al., "A 4-cm Band Ruby Maser", Radio Eng. & Electron, Phys. vol. 18, No. 2, Feb. 1973, pp. 258-261.
Stetsenko, "Masing in Ruby in Strong Magnetic Fields", Sov. Tech. Phys. Lett. vol. 6, No. 1, Jan. 1981, pp. 45-46.

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