Patent · US Active

Waveguide facet interface

US12050345B2 · kind B2 · utility

0Cited by

16References

19Claims

0Family size

Assignee

Rockley Photonics Limited · GB

Inventors

Abu Thomas · Oak Park, US
Andrea Trita · Pasadena, US
Jeffrey Driscoll · San Jose, US

Key dates

Filing date	Mar 4, 2022
Grant date	Jul 30, 2024
Priority date	—
Expiry date	Mar 26, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/12119
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A photonic integrated circuit. In some embodiments, the photonic integrated circuit includes: a waveguide; and a waveguide facet, a first end of the waveguide being at the waveguide facet, a first angle being an angle between: the waveguide at the first end of the waveguide and the normal to the waveguide facet, the first angle being at least 5 degrees, a first section of the waveguide having a first end at the waveguide facet and a second end, the first section having: a curvature of less than 0.01/mm at the first end of the first section, a curvature of less than 0.01/mm at the second end of the first section, and a curvature of at least 0.1/mm at a point between the first end and the second end.

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