Electro-optic modulator

Details Electro-optic modulator Electro-optic modulator

2007-08-14

2007-08-14

Schwartz, Jordan (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C329S337000, C331S151000

Reexamination Certificate

active

10977917

ABSTRACT:
A modulator circuit (28) for directing a voltage across a modulator element (26) to modulate a beam (20) includes a first inductor L1that is electrically connected in parallel to the modulator element (26) and a second inductor L2that is electrically connected in parallel to the first inductor L1and the modulator element (26). A resonant frequency of the modulator circuit (28) is controllable over a range of between approximately 200 and 380 MHz. Additionally, the modulator circuit (28) can include a third inductor L3that is electrically connected in parallel to the inductors L1, L2, and the modulator element (26). Further, the modulator circuit (28) can include an added capacitor (546) that is electrically connected in parallel to the inductors L1, L2, and the modulator element (26).

REFERENCES:
patent: 5189547 (1993-02-01), Day et al.
patent: 5787126 (1998-07-01), Itoh et al.
patent: 6160374 (2000-12-01), Hayes et al.
patent: 6693573 (2004-02-01), Linder
patent: 2006/0039169 (2006-02-01), Chen et al.
Day, Timothy.Resonant modulators operate over wide frequency ranges. Technology Guide: Modulators. Laser Focus World. May 1992. pp. 183-188.
Practical Uses and Applications of Electro-Optic Modulators. Application Note 2. New Focus Inc. Copyright 2001.

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