Patent · US Expired

Waveguide end face

US6266468A · kind A · utility

17Cited by

5References

12Claims

0Family size

Assignee

BOOKHAM TECHNOLOGY, PLC · GB

Inventors

Andrew George Rickman · Preshute, GB
Arnold Peter Roscoe Harpin · Boars Hill, GB

Key dates

Filing date	Jul 17, 1998
Grant date	Jul 24, 2001
Priority date	—
Expiry date	Jul 17, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/12195
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An integrated optical waveguide with an end face, the end face being provided on an end portion with a greater width than the waveguide, e.g. in the form of a T-bar provided at the end of the waveguide, whereby the rounding effect produced by the manufacturing process, e.g. etching, used to form the end face does not affect the flatness of the portion of the end face through which light is transmitted. The T-bar is preferably inclined so the normal of the end face is inclined to the optical axis of the waveguide to reduce back reflection therefrom. A plurality of waveguides may terminate in a common T-bar.

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