Photonic crystal structure sensor

US7630589B2 · kind B2 · utility

Assignee

• The Board of Trustees of the Leland Stanford Junior University · US

Inventors

• Onur Kilic · Palo Alto, US
• Michel J. F. Digonnet · Palo Alto, US
• Gordon S. Kino · Stanford, US
• Olav Solgaard · Stanford, US
• Shrestha Basu Mallick · Stanford, US
• Onur Can Akkaya · Stanford, US

Key dates

• Filing date: Jan 9, 2008
• Grant date: Dec 8, 2009
• Expiry date: Jan 9, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An acoustic sensor and a method of fabricating an acoustic sensor are provided. The acoustic sensor includes at least one photonic crystal structure and an optical fiber having an end optically coupled to the at least one photonic crystal structure. The acoustic sensor further includes a structural portion mechanically coupled to the at least one photonic crystal structure and to the optical fiber. The at least one photonic crystal structure, the optical fiber, and the structural portion substantially bound a region having a volume such that a frequency response of the acoustic sensor is generally flat in a range of acoustic frequencies.