Jds Uniphase Corporation

Lumentum Operations LLC

Nikolai Morozov

Zhong Pan

Joe Qingzhe Wen

An optical device may include an optical subassembly and a digital signal processor (DSP). The optical device may include a radio frequency (RF) interconnect that electrically connects the optical subassembly and the DSP. The optical device may include a passive RF filter on one or more transmission lines of the RF interconnect.

Integration of passive microwave stop-band filter into a radio frequency (RF) interconnect printed circuit board for opto-electronic module RF bandwidth control

A high-speed feedthrough (HSFT) is disclosed for transmitting a signal having a highest frequency of at least 10 GHz between first and second locations separated by a vertical distance of at least approximately half of the shortest transmitted wavelength, and separated by a horizontal distance. A substrate structure includes multiple stacked layers. An RF transmission line is connected through the structure between the first and second locations for transmitting the signal. The RF transmission line comprises a series of sequentially connected horizontal conductors having lengths less than half of the effective wavelength and vertical conductors having heights less than one quarter of the effective wavelength, thereby spanning the horizontal and vertical distance between the two locations in a stairs-like shape through the structure's layers. Each conductor's geometry may deviate from standard 50 ohm buried strip lines and is optimized for complete 3-dimensional structure.

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Castro Valley, CA, United States of America

Nikolai Morozov