Direct optical injection locked fet oscillator

Details Direct optical injection locked fet oscillator Direct optical injection locked fet oscillator

1993-01-21

1994-12-13

Mis, David

Oscillators

With device responsive to external physical condition

Temperature or light responsive

257432, 385 39, 385 49, 385 51, 331172, H03B 508, H03B 512, H03B 518, G02B 636

Patent

active

053732618

ABSTRACT:
The coupling of optical signals to the active region of a FET having a wide source to drain spacing via an optical fiber and material having an index of refraction matching that of the fiber or the FET so as to increase the locking range when the FET is part of an oscillator circuit or to increase the change in the electrical gain of the FET caused by a change in the optical energy if the FET is an amplifier.

REFERENCES:
patent: 3864019 (1975-02-01), Smolinsky et al.
patent: 4182545 (1980-01-01), Greer
patent: 4601535 (1986-07-01), Tanaka et al.
patent: 4790620 (1988-12-01), Niwayama
patent: 4826272 (1989-05-01), Pimpinella et al.
patent: 4961801 (1990-10-01), Gasparian
D. C. Buck and M. A. Cross; "Optical Injection Locking of FET Oscillators ing Fiber Optics"; Digest of Papers, IEEE MTT Symposium, 1986. pp. 611-614.
Ronald D. Esman, Lew Goldberg and J. F. Weller; "Optical Phase Control of an Optically Injection-Locked FET Microwave Oscillator", IEEE Transactions On Microwave Theory and Techniques, vol. 37, No. 10, Oct. 1989. pp. 1512-1518.
Alwyn J. Seeds and Augustor A. De Salles; "Optical Control of Microwave Semiconductor Devices", IEEE Transactions On Microwave Theory and Techniques, vol. 38, No. 5, May 1990. pp. 577-584.

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