Patent · US Active

Low loss high extinction ratio on-chip polarizer

US9470844B1 · kind B1 · utility

13Cited by

21References

13Claims

0Family size

Assignee

Coriant Advanced Technology, LLC · US

Inventors

Yangjin Ma · Brooklyn, US
Ruizhi Shi · New York, US
Yang Liu · Tangxia, CN

Key dates

Filing date	Jun 30, 2015
Grant date	Oct 18, 2016
Priority date	—
Expiry date	Jun 30, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/125
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A low loss high extinction ratio on-chip polarizer has at bi-layer optical taper with an input port of width W1 that communicates with a mode squeezer, followed by an S-bend (or dump bend), and finally a taper having an output port of width W1. The illumination that passes through the low loss high extinction ratio on-chip polarizer has a TM0 mode converted to a TE1 mode which is lost in the mode squeezer and S-bend section, while an input TE0 mode is delivered at the output as a substantially pure TE0 signal of nearly undiminished intensity.

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