Patent ID: 7228014
Filing Date: 2007-06-05
Classification: G02F

Abstract:
1. An electro-optical modulator, comprising: a housing with an input fiber at one end and an output fiber at another end thereof, wherein the fibers are connected to the housing along substantially the same axis; a Lithium Niobate chip having a low impedance and an RF electrode; a microwave input chip coupled to the modulator chip, the microwave input chip having a thin film resistor for connecting a RF connector to the RF electrode of the Lithium Niobate chip, wherein the RF connector is positioned in the housing such that the RF connector is substantially perpendicular to the axis of the fibers and the microwave input chip is configured to increase the total input impedance of the modulator; and a coplanar waveguide in the microwave input chip, the thin film resistor being placed in the coplanar waveguide.