Photonic crystal optical waveguides having tailored dispersion profiles

US6895154B2 · kind B2 · utility

Assignee

• OmniGuide Communications · US

Inventors

• Steven G. Johnson · McLeansboro, US
• Mihai Ibanescu · Cambridge, US
• Ori Weisberg · Cambridge, US
• Yoel Fink · Cambridge, US
• John D. Joannopolous · Belmont, US
• Maksim Skorobogatiy · Watertown, US
• Torkel Engeness · Somerville, US
• Marin Soljacic · Belmont, US
• Steven A. Jacobs · Needham, US

Key dates

• Filing date: Jan 25, 2002
• Grant date: May 17, 2005
• Expiry date: Apr 3, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/02266
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical waveguide having a working mode with a tailored dispersion profile, the waveguide including: (i) a dielectric confinement region surrounding a waveguide axis, the confinement region comprising a photonic crystal having at least one photonic bandgap, wherein during operation the confinement region guides EM radiation in a first range of frequencies to propagate along the waveguide axis; (ii) a dielectric core region extending along the waveguide axis and surrounded by the confinement region about the waveguide axis, wherein the core supports at least one guided mode in the first frequency range; and (iii) a dielectric dispersion tailoring region surrounded by the confinement region about the waveguide axis, wherein the dispersion tailoring region introduces one or more additional modes in the first range of frequencies that interact with the guided mode to produce the working mode.