Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1991-02-21
1993-08-10
Moskowitz, Nelson
Optical: systems and elements
Optical modulator
Light wave temporal modulation
385 14, 342 54, 359333, H04B 900, G01B 902
Patent
active
052354555
ABSTRACT:
A differential amplifier for gigahertz bandwidth electrical signals using fiber optics and integrated optical devices has a differential gain which is a function of the electrical to optical and optical to electrical conversion factors. The common mode rejection ratio of the differential amplifier at 1 GHz was greater than 30 dB and the common mode rejection ratio depended on the time difference between the differential amplifier inputs. A differential amplifier fabricated in accordance with this inventive concept could be used as an integrated module in radar and communications systems.
REFERENCES:
patent: H474 (1988-06-01), Taylor
patent: 4128759 (1978-12-01), Hunt et al.
patent: 4473270 (1984-09-01), Shaw
patent: 4493528 (1985-01-01), Shaw et al.
patent: 4514821 (1985-04-01), Tower
patent: 4521681 (1985-06-01), Iuaba
patent: 4588255 (1986-05-01), Tur et al.
patent: 4671605 (1987-06-01), Soref
patent: 4702550 (1987-10-01), Sano
patent: 4799797 (1989-01-01), Huggins
patent: 4830486 (1989-05-01), Goodwin
patent: 4860279 (1989-08-01), Falk et al.
patent: 4997249 (1991-03-01), Berry et al.
"Operational Amplifiers", Linear Products Data Book, 1988, pp. 2-4, 2-10, 11.
Choi, Y. A., & Taylor, H. F. "Gigahertz-Bandwidth Optoelectronic Differential Amplifier", Microwave and Optical Technology Letters, vol. 1, No, Apr. 1988, pp. 49-51.
Kasper, B. L., et al., "Balanced Dual-Detector Receiver for Optical Heterodyne Communication at G-Bit/S Rates", Electronics Letters, vol. 22, 1986, pp. 413-415.
Ericsson Components AB product brochure for high-speed LiNbO.sub.3 external modulators, PGM 1010/3MP, PGM 1010/5MP, PGM 2010/3MP, and PGM 2010/5MP.
GEC Advanced Optical Products brochure for 18GHz Integrated Optical Amplitude Modulators, Y-35-8808-01, West Hanningfield Road, Great Baddow, Chelmsford, Essex, England CM2 8HN.
Integrated Optical Modulators brochure for 2.5 GHz and 8 GHz integrated Optical Amplitude Modulators, model Y-35-8808-01 (and models Y-35-5370-01 and Y-35-5600-01), Hoechst Celanese Advanced Photonics, 86 Morris Avenue, Summit, NJ 07901.
Betts, G. E., et al., "High-Performance Optical Analog Link Using External Modulator", IEEE Photo. Technol. Lett., vol. 1, 1989, pp. 404-406.
Berry et al, IEEE Photonics Technical Lett., vol. 3, #3, pp. 276-277, Mar. 1991; abst. only supplied.
Electron, Warf. Def. Electron, vol. 10, #10, pp. 3-32, Oct. 1978; abst: only supplied.
Goodwin et al, "Optical Transversal Filter . . . Weights", Mar. 1 1989, Opt Compat., vol. 9.
Berry et al, "2.0 GHz Sampling Rate . . . Filter"; Nov. 1 1989, Asiloniar Conf., IEEE, Maple Press, pp. 294-296, vol. 1.
Berry et al, "Wide-Band RF Signal Proclating . . .", Dec. 1990, NTIS AN AP-A233-388-8-XAB, 24PP.
Taylor, H. F., "Application of Filter Optic . . . Processing", Sep. 18 1990, Proc. SPIE, Soc. Opt. Eng., vol. 1371, pp. 150-160.
Berry Mark H.
Gookin Debra M.
Fendelman Harvey
Keough Thomas Glenn
Moskowitz Nelson
The United States of American as represented by the Secretary of
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