Patent · US Active

Direct interlayer optical coupler

US8548287B2 · kind B2 · utility

27Cited by

0References

20Claims

0Family size

Assignee

Oracle International Corporation · US

Inventors

Hiren D. Thacker · San Diego, US
Xuezhe Zheng · San Diego, US
Ivan Shubin · San Diego, US
Kannan Raj · Chandler, US
John E. Cunningham · San Diego, US
Ashok V. Krishnamoorthy · San Diego, US

Key dates

Filing date	Nov 10, 2011
Grant date	Oct 1, 2013
Priority date	—
Expiry date	Mar 21, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49826
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 an optical coupler having a vertical facet. This optical coupler has an optical mode that is different than the optical mode of the optical waveguide. For example, the spatial extent of the optical mode associated with the optical coupler may be larger, thereby reducing optical losses and sensitivity to alignment errors. Then, the optical signal is directly coupled from the vertical facet to a facing vertical facet of an identical optical coupler on another substrate, and the optical signal is conveyed in another optical waveguide disposed on the other substrate.

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