Patent · US Expired

Optical communication module

US7215886B2 · kind B2 · utility

11Cited by
3References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 15, 2002
Grant dateMay 8, 2007
Priority date
Expiry dateOct 9, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01S5/0683
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

The present invention is related to an optical communication module for transmitting high frequency signals (e.g., 10 Gbit/s and higher data rates) between an optical element and an external circuit. In an illustrative embodiment, the optical communication module includes signal transmission lines and ground lines formed on a ceramic substrate, a flexible wiring board, and a printed circuit board. The widths of the signal lines and the ground lines vary, as well as the spacing between the signal and ground lines. This facilitates characteristic impedance matching among the signal lines to within about 50Ω.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.