Patent · US Active

Optical waveguiding part

US9885828B2 · kind B2 · utility

1Cited by

1References

19Claims

0Family size

Assignee

FINISAR SWEDEN AB · SE

Inventors

David M. Adams · Greenville, US
Per Granestrand · Tyresö, SE

Key dates

Filing date	Jun 4, 2015
Grant date	Feb 6, 2018
Priority date	—
Expiry date	Aug 20, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/12159
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Optical waveguiding part (300), which waveguiding part is arranged to convey light through an output facet (30) of the waveguiding part, which waveguiding part comprises a ridge waveguide comprising a semiconductor substrate (320) and a semiconductor light-conveying ridge, wherein the output facet is set at an angle (α) in relation to a main direction (z) of light along the said waveguide, so that light travelling in the waveguide along said main direction has an angle of incidence towards the facet of between 2° and 14° and is reflected towards a first side (301) of the said ridge, wherein the waveguide comprises an MMI (Multi Mode Interferometer) (310), arranged to create an output image substantially at the output facet.

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