All-silicon raman amplifiers and lasers based on micro ring resonators

US7532656B2 · kind B2 · utility

Assignee

• The Trustees of Columbia University in the City of New York · US

Inventors

• Xiaodong Yang · New York, US
• Chee Wei Wong · New York, US

Key dates

• Filing date: Feb 15, 2006
• Grant date: May 12, 2009
• Expiry date: Feb 15, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/2308
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Devices for generating a laser beam are disclosed. The devices include a silicon micro ring having at least one silicon optical waveguide disposed at a distance from the micro ring. The radius and the cross-sectional dimension of the microring, the cross-sectional dimension of the waveguide, and the distance between the micro ring and the waveguide are determined such that one or more pairs of whispering gallery mode resonant frequencies of the micro ring are separated by an optical phonon frequency of silicon. Methods of manufacturing a lasing device including a silicon micro ring coupled with a silicon waveguide are also disclosed.