Amplifiers – Parametric amplifiers – Semiconductor type
Patent
1987-10-30
1990-08-07
Moskowitz, Nelson
Amplifiers
Parametric amplifiers
Semiconductor type
455602, H01L 1500, H01S 220
Patent
active
049471341
ABSTRACT:
A single frequency lightwave system employs semiconductor, optical amplifiers arranged in tandem with suitable nose filtering and isolation between amplifier stages. Feedback control maintains overlap between the signal frequency and one of the passbands of the amplifiers. Either direct detection or coherent detection can be used. Also described is a receiver front end which includes such an amplifier between the incoming signal and a photodetector. Both transmission systems and switching systems are described.
REFERENCES:
patent: 3571737 (1971-03-01), Miller
patent: 4038610 (1977-07-01), Nishizawa et al.
patent: 4571576 (1986-02-01), Olsen et al.
patent: 4663596 (1987-05-01), Heeks
patent: 4693545 (1987-09-01), Henningsen et al.
patent: 4736164 (1988-04-01), Henning
patent: 4794346 (1988-12-01), Miller
K. Iwashita et al., Electron Lett., vol. 22, pp. 791-792, (1986).
N. A. Olsson et al., OFC/IOOC, Reno, Nev., PDP8-1, pp. 32-35, (1987).
N. A. Olsson, Electron Lett., vol. 21, pp. 1085-1087, (1985).
M. Shikada et al., IOOC/ECOC, Venice, Italy, pp. 49-52, (1985), vol. III.
R. C. Steel et al., Electron Lett., vol. 23, pp. 296-297, (1987).
Y. Yamamoto, IEEE J. Quantum Electron, vol. QE-16, pp. 1073-1081, (1980).
G. Eisenstein et al., Electron Lett., vol. 21, pp. 1076-1077, (1985).
I. W. Marshall et al., Electron Lett., vol. 22, pp. 253-254, (1986).
Tsang et al., "Optoelectronic Logic . . . Lasers", 11/11/83, pp. 1621-1625, IEEE, J.Q.E., vol. QE-19, #11.
Temkin et al., "Reflection Noise . . . Lasers", 2/86, IEEE J.Q.E., vol. QE-22, #2, pp. 286-293.
Olsson et al., "An Optical Switching . . . Lasers", 4/84, IEEE J.Q.E., vol. QE-20, #4, pp. 332-334.
Mukai et al., "Gain, Frequency . . . Amplifiers", 6/81, IEEE J.Q.E., vol. QE-17, #6, pp. 1028-1034.
American Telephone and Telegraph Company
Moskowitz Nelson
Urbano Michael J.
LandOfFree
Lightwave systems using optical amplifiers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lightwave systems using optical amplifiers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lightwave systems using optical amplifiers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-962765