Patent · US Active

Efficient inter-chip optical coupling

US8548288B2 · kind B2 · utility

13Cited by

9References

20Claims

0Family size

Assignee

Oracle International Corporation · US

Inventors

Kannan Raj · Chandler, US
John E. Cunningham · San Diego, US
Hiren D. Thacker · San Diego, US

Key dates

Filing date	Dec 20, 2011
Grant date	Oct 1, 2013
Priority date	—
Expiry date	Apr 5, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/12004
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In an MCM, an optical signal is conveyed by an optical waveguide disposed on a surface of a first substrate to a first optical coupler. This first optical coupler redirects the optical signal out of the plane of the optical waveguide. Then, an optical interposer guides the optical signal between the first optical coupler and a second optical coupler on a surface of a second substrate, thereby reducing spatial expansion of the optical signal between the optical couplers. Moreover, the second optical coupler redirects the optical signal into a plane of an optical waveguide disposed on a surface of the second substrate, which then conveys the optical signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.