Synchronization effects in a submillimeter Josephson self-oscillator
Abstract
An experimental and theoretical study of injection-locking in an oscillator in the presence of noise is presented. The experiment is performed with a Josephson point-contact self-oscillator heterodyne receiver irradiated by a very weak 1-THz signal. A general calculation of the oscillator response at low injection level is made based on the theoretical treatment of Stratonovitch (1967). It is shown that the Josephson oscillator described by the RSJ model obeys the general locking equation in the presence of noise. A simple evolution law of the oscillator spectrum as a function of detuning is assumed and its response is calculated. The experimental results are compared with computer calculations and the implications are discussed.
- Publication:
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IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- February 1983
- DOI:
- Bibcode:
- 1983ITMTT..31..177H
- Keywords:
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- Frequency Synchronization;
- Josephson Junctions;
- Oscillators;
- Self Oscillation;
- Submillimeter Waves;
- Computerized Simulation;
- Fokker-Planck Equation;
- Frequency Shift;
- Injection Locking;
- Intermediate Frequencies;
- Irradiation;
- Monochromatic Radiation;
- Electronics and Electrical Engineering