Amplifiers – Parametric amplifiers – Semiconductor type
Patent
1978-05-03
1980-04-01
Moskowitz, Nelson
Amplifiers
Parametric amplifiers
Semiconductor type
332 751, 356352, H01S 310
Patent
active
041963962
ABSTRACT:
A nonlinear interferometer apparatus is disclosed wherein a Fabry-Perot cavity is substantially filled with an electro-optic material having terminals to which a potential can be applied. A single frequency, single mode, linearly polarized source of optical radiation is coupled into the cavity and a beam splitter at the output of the cavity deflects a portion of the optical energy coming from the cavity. This deflected portion of output optical energy is incident on a photodetector whose output is amplified and connected to the terminals of the electro-optic material. The resulting device exhibits differential gain, and can function as an optical switch, limiter or optical memory element. With sufficient amplification of the detector output, an optical quantizer is provided. By properly adjusting the cavity length and providing a substantially constant optical signal to the input end of the cavity, an amplified replica of an amplitude modulated optical signal applied to the photodetector appears at the output end of the cavity.
REFERENCES:
patent: 3243722 (1966-03-01), Billings
patent: 3328723 (1967-06-01), Giordmaine et al.
patent: 3567325 (1971-03-01), Tibbals
patent: 3579145 (1971-05-01), DeLange
patent: 3612655 (1971-10-01), Buchan et al.
Kastalskii, `Optical and Electrical Effects . . . Resonator`, 11/73, pp. 635-638, Sov. Phys. Semicond., vol. 7, #5.
Smith et al., "A Bistable Fabry-Perot Resonator", 3/15/77, pp. 280-281, Appl. Phys. Lett., vol. 30, #6.
Smith et al., "Nonlinear Electro-Optic . . . Feedback", 3/78, pp. 55-57, Optics Lett., vol. 2, #3.
Feldman, "Bistable Optical . . . Cell", 4/79, pp. 115-117, Optics Lett., vol. 4, #4.
Felber et al., "Theory of Nonresonant Multistable Optical Devices", 6/15/76, pp. 731-733, Appl. Phys. Lett., vol. 28, #12.
Bell Telephone Laboratories Incorporated
Dubosky Daniel D.
Moskowitz Nelson
LandOfFree
Interferometer apparatus using electro-optic material with feedb does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interferometer apparatus using electro-optic material with feedb, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interferometer apparatus using electro-optic material with feedb will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1316395