The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2007
Filed:
Jan. 24, 2005
Prakash Gothoskar, Allentown, PA (US);
Margaret Ghiron, Allentown, PA (US);
Robert Keith Montgomery, Easton, PA (US);
Vipulkumar Patel, Breinigsville, PA (US);
Soham Pathak, Allentown, PA (US);
David Piede, Allentown, PA (US);
Kalpendu Shastri, Orefield, PA (US);
Katherine A. Yanushefski, Zionsville, PA (US);
Prakash Gothoskar, Allentown, PA (US);
Margaret Ghiron, Allentown, PA (US);
Robert Keith Montgomery, Easton, PA (US);
Vipulkumar Patel, Breinigsville, PA (US);
Soham Pathak, Allentown, PA (US);
David Piede, Allentown, PA (US);
Kalpendu Shastri, Orefield, PA (US);
Katherine A. Yanushefski, Zionsville, PA (US);
SiOptical, Inc., Allentown, PA (US);
Abstract
An SOI-based photonic bandgap (PBG) electro-optic device utilizes a patterned PBG structure to define a two-dimensional waveguide within an active waveguiding region of the SOI electro-optic device. The inclusion of the PBG columnar arrays within the SOI structure results in providing extremely tight lateral confinement of the optical mode within the waveguiding structure, thus significantly reducing the optical loss. By virtue of including the PBG structure, the associated electrical contacts may be placed in closer proximity to the active region without affecting the optical performance, thus increasing the switching speed of the electro-optic device. The overall device size, capacitance and resistance are also reduced as a consequence of using PBGs for lateral mode confinement.