Push-pull optical modulator driver circuit

Details Push-pull optical modulator driver circuit Push-pull optical modulator driver circuit

1994-05-05

1996-01-09

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

327514, 250214LS, H03K 300

Patent

active

054831865

ABSTRACT:
A drive circuit for increasing the voltage range applied across optical modulators in a transmitter stage of an optical communication system. The circuit comprises a first switch and a second switch connected thereto. The first switch is responsive to a first input signal and has a maximum voltage drop equal to a first reference voltage. The second switch is responsive to a second input signal and has a maximum voltage drop equal to a second reference voltage. A modulator is connected between the first and second switches so that, depending on the values of the first and second input signals, the maximum voltage drop across the modulator will be a value greater than either the first or the second reference voltage.

REFERENCES:
patent: 3655988 (1972-04-01), Nakamura et al.
patent: 4322817 (1982-03-01), Kuster
patent: 4689793 (1987-08-01), Liu et al.
patent: 4754132 (1988-06-01), Hinton et al.
patent: 4985621 (1991-01-01), Aull et al.
patent: 5055668 (1991-10-01), French
patent: 5289015 (1994-02-01), Chirovsky et al.
patent: 5329113 (1994-07-01), Taylor et al.
patent: 5389776 (1995-02-01), Woodward

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