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. 27, 2001
Filed:
Jan. 28, 1999
Dean Tran, Westminster, CA (US);
Edward A. Rezek, Torrance, CA (US);
Eric R. Anderson, Redondo Beach, CA (US);
William L. Jones, Inglewood, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A resonant photodetector assembly (,) which uses multiple reflections of light within a photodetector (,) to convert input light into an electrical signal. The photodetector (,) includes a combination of generally planar semiconductor layers including a photodetector active layer (,) where light is converted into an electrical output. The photodetector (,) further includes a first outer electrical contact layer (,) and a second outer electrical contact layer (,). A waveguide (,) is positioned on the photodetector (,) and has a waveguide active layer (,) positioned between a pair of waveguide cladding layers (,), a first end (,) for receiving input light and a second end (,) for reflecting the light. A reflector (,) is positioned on the second end (,) of the waveguide (,) at an angle relative to a line parallel to the substrate (,), where the reflector (,) reflects the light received by the first end (,) of the waveguide active layer (,) towards the photodetector (,). A reflector (,) is positioned on the second outer layer (,) of the photodetector (,) and provides a reflective surface for reflecting the light within the photodetector (,).