Patent · US Active

Adiabatic/diabatic polarization beam splitter

US9759862B1 · kind B1 · utility

2Cited by

1References

20Claims

0Family size

Assignee

National Technology & Engineering Solutions of Sandia, LLC · US

Inventors

Christopher DeRose · Victor, US
Hong Cai · Beijing, CN

Key dates

Filing date	Oct 10, 2016
Grant date	Sep 12, 2017
Priority date	—
Expiry date	Oct 10, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/2773
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The various presented herein relate to an on-chip polarization beam splitter (PBS), which is adiabatic for the transverse magnetic (TM) mode and diabatic for the transverse electric (TE) mode. The PBS comprises a through waveguide and a cross waveguide, wherein an electromagnetic beam comprising TE mode and TM mode components is applied to an input port of the through waveguide. The PBS can be utilized to separate the TE mode component from the TM mode component, wherein the TE mode component exits the PBS via an output port of the through waveguide, and the TM mode component exits the PBS via an output port of the cross waveguide. The PBS has a structure that is tolerant to manufacturing variations and exhibits high polarization extinction ratios over a wide bandwidth.

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