Single-ended long period grating optical device

US6275628A · kind A · utility

Assignee

• Luna Innovations Incorporated · US

Inventors

• Mark E. Jones · Blacksburg, US
• Kent A. Murphy · Roanoke, US
• Jennifer L. Elster · Blacksburg, US
• Michael Günther · Koblenzer Straße, DE
• Thomas A. Wavering · Charlottesville, US

Key dates

• Filing date: Nov 15, 1999
• Grant date: Aug 14, 2001
• Expiry date: Nov 15, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/29317
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A single-ended long period grating optical device is presented. The single-ended optical device comprises an optical waveguide having at least one core mode and a plurality of cladding modes. At least one long period grating couples light from the core mode to the cladding modes. A reflector is positioned in an operable relationship to the long period grating, and the reflector reflects a signal. A mode stripper is positioned after the long period grating and removes the cladding modes from a transmitted signal and the reflected signal.