Optical modulator and design method therefor

Details Optical modulator and design method therefor Optical modulator and design method therefor

2005-03-15

2005-03-15

Spector, David N. (Department: 2873)

Optical: systems and elements

Optical modulator

Having particular chemical composition or structure

C359S238000, C385S002000, C385S003000

Reexamination Certificate

active

06867901

ABSTRACT:
A high-speed, high-performance optical modulator operating with a reduced drive voltage without sacrificing modulation bandwidth. The modulator has an optical waveguide fabricated on a crystal substrate. A signal electrode is on a ridge on the substrate. Ground electrodes are formed on both sides of the signal electrode. A gap between the signal and ground electrodes is at least 44 μm, and an interaction length of the signal electrode is at least 41 mm. The modulator can operate at 40 Gbps or higher.

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patent: 20030169478 (2003-09-01), Sugiyama et al.
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Sugiyama, Masaki, et al., “Driver-less 40 Gb/s LiNbO3Modulator with Sub-1 V Drive Voltage,” OFC 2002, Mar. 17, 2002.

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