Patent · US Active

Compact and low loss Y-junction for submicron silicon waveguide

US9217829B2 · kind B2 · utility

7Cited by

4References

8Claims

0Family size

Assignee

Coriant Advanced Technology, LLC · US

Inventors

Yi Zhang · Pasadena, US
Shuyu Yang · Jersey City, US
Tom Baehr-Jones · Seattle, US

Key dates

Filing date	Nov 29, 2013
Grant date	Dec 22, 2015
Priority date	—
Expiry date	Mar 1, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/1215
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A compact, low-loss and wavelength insensitive Y-junction for submicron silicon waveguides. The design was performed using FDTD and particle swarm optimization (PSO). The device was fabricated in a 248 nm CMOS line. Measured average insertion loss is 0.28±0.02 dB across an 8-inch wafer. The device footprint is less than 1.2 μm×2 μm, orders of magnitude smaller than MMI and directional couplers.

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