Oscillators – With device responsive to external physical condition – Temperature or light responsive
Patent
1988-08-15
1989-07-18
Mis, David
Oscillators
With device responsive to external physical condition
Temperature or light responsive
331 96, 331117FE, 331117D, 331172, 331177R, 331177V, H03B 508, H03B 518
Patent
active
048497169
ABSTRACT:
An optical injection locking oscillator is comtemplated having a tuning device. The tuning device generates a DC voltage proportional to the resonant frequency of a modulated light used to injection lock the free running oscillator. The DC voltage is applied to a varactor capacitor within the oscillator to bring the frequency of oscillation within a close proximity to the modulating frequency of the light. This facilitates injection locking, whereas frequencies of oscillation outside a certain locking range will not facilitate injection locking. The modulated light then locks the oscillator into a desired resonant frequency. A second embodiment contemplates using a YIG oscillator regulated by a DC current generated within the tuning device.
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Golio John M.
Warren David A.
Mis David
Motorola Inc.
Powell Jordan C.
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