High speed optical receiver
US6516116B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2000 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4204
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high speed optical receiver comprises a photonic detector having an active aperture area dimensioned to minimize capacitance effects commensurate with achieving the desired signaling speed, and a compound parabolic reflector having a surface contour described by rotating a parabolic arc about a rotational axis, the axis of said parabolic arc making an angle with the rotational axis proportional to the conical angle of the incident light to be gathered, the reflector having a plurality of focii defining the perimeter of an exit pupil not exceeding the area of said photonic detector aperture. The compound reflector contour may advantageously be formed at the end of a length of optical fiber that is positioned at the detector aperture, incident light being admitted to the other end of the fiber through a focusing element which may be a lens, mirror, or holographic phase mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.