Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1990-01-04
1991-06-04
Gonzalez, Frank
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455611, G02B 610
Patent
active
050208721
ABSTRACT:
An electrooptic directional coupler having first and second electrodes for influencing coupling between a segment of a first optical waveguide and a segment of a second optical waveguide, is operated by varying the potential of the first electrode relative to the second electrode during a first interval in accordance with a first function such that the first electrode remains at a first polarity relative to the second electrode, and varying the potential of the first electrode relative to the second electrode during a second interval in accordance with a second function such that the first electrode remains at a second polarity, opposite the first polarity, relative to the second electrode. The integral with respect to time over the first and second intervals of the potential of the first electrode relative to the second electrode is essentially zero.
REFERENCES:
patent: 3121169 (1964-02-01), Benton
patent: 3579145 (1971-05-01), Lange
patent: 3714437 (1973-01-01), Kinsel
patent: 4397042 (1983-08-01), Tsujii et al.
patent: 4442528 (1984-04-01), Fukuda
patent: 4475212 (1984-10-01), McLean et al.
patent: 4524462 (1985-06-01), Cottatelucci
patent: 4545078 (1985-10-01), Wiedeburg
patent: 4709417 (1987-11-01), Kuwabara
patent: 4775208 (1988-10-01), Robinson et al.
T. Fujiwara et al., "Suppression of Crosstalk Drift in Ti:LiNbO.sub.3 Waveguide Switches", IEEE J. Lightwave Tech., vol. 6, No. 6 (1988).
C. M. Gee et al., "Minimizing dc Drift in LiNbO.sub.3 Waveguide Devices", Appl. Phys. Lett., vol. 47, 211 (1985).
G. Ramer et al., "Polarization-Independent Optical Switch with Multiple Sections of .DELTA..beta. Reversal and a Gaussian Taper Function", IEEE Trans. Microwave Theory and Tech., vol. MTT-30, 1760 (1982).
DuPuy Richard E.
Liebenrood John D.
McCaughan Leon
Gonzalez Frank
Smiths Industries Aerospace & Defense Systems Incorporated
LandOfFree
Method of operating an electrooptic modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of operating an electrooptic modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of operating an electrooptic modulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1022278