Waveguides with optical monitoring

US6934455B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Michael P. Skinner · San Jose, US
• Bidhan Chaudhuri · San Jose, US
• Chan H. Yoo · Boise, US
• Mahmood Toofan · Dixon, US
• Gabel Chong · Mountain View, US
• Achintya Bhowmik · Cupertino, US

Key dates

• Filing date: Dec 24, 2002
• Grant date: Aug 23, 2005
• Expiry date: Jul 27, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/4291
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Optical waveguides with power monitoring or optical detection capabilities are disclosed. The waveguide includes a lower cladding, a core disposed on the lower cladding, an upper cladding disposed on the core and a trench extending transversely through a distal end of the lower cladding, core and upper cladding. The trench includes a distal wall that provides a reflective surface disposed at an angle relative to the end of the core of greater than 90°. A detector is disposed above the trench for receiving a reflected light beam off of the reflective surface. Various methods of manufacturing these devices are also disclosed.