Photodetecting fiber

US8630519B2 · kind B2 · utility

Assignee

• Massachusetts Institute of Technology · US

Inventors

• Fabien Sorin · Cambridge, US
• Guillaume Lestoquoy · Cambridge, US
• Sylvain Danto · Clemson, US
• Yoel Fink · Cambridge, US
• John D. Joannopoulos · Belmont, US

Key dates

• Filing date: Oct 5, 2011
• Grant date: Jan 14, 2014
• Expiry date: Jan 17, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/50
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Photodetecting fiber. The fiber detects and localizes an incident optical beam. A semiconducting core is in intimate contact with a material forming a resistive channel that breaks axial symmetry. The resistive channel has a resistivity between that of metals and the semiconducting core, enabling the imposition of non-uniform, convex electric potential distributions along the fiber axis allowing photo-current measurements along the fiber.