Coupling modulated micro-ring resonator modulator

US11327384B2 · kind B2 · utility

Assignee

• NOKIA SOLUTIONS AND NETWORKS OY · FI

Inventors

• Ajay Mistry · Brooklyn, US
• Meisam Bahadori · New York, US
• Matthew Akio Streshinsky · New York, US
• Yangjin Ma · Brooklyn, US

Key dates

• Filing date: Aug 10, 2020
• Grant date: May 10, 2022
• Expiry date: Aug 10, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2203/50
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical resonant modulator based on coupling modulation, comprising a resonant structure with an embedded Mach-Zehnder interferometer that is differentially driven to induced amplitude modulation at the output port. The principle of coupling modulation enables high data/baud rates to be achieved in a photonic integrated circuit, e.g. silicon, footprint that is considerably smaller than that of a conventional traveling-wave Mach-Zehnder modulator, in particular by utilizing space saving features, such as ring resonator phase shifters and bend waveguide arms.