EMI reduction for optical subassembly
US6206582A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Jan 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/48091
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optoelectronic transmitter module is provided for transmitting optical data signals from a host device. The module is housed within a grounded chassis of the host device and provides a reduced effective aperture therethrough. The module components include electronic circuitry mounted within the module configured to convert electrical data signals to an optical output signal. A conductive housing encloses the electronic circuitry. The module housing includes a first connector end adapted to receive a fiber optic connector. When the module is installed within the host device chassis, the connector end engages the host chassis to form a conductive barrier around the first end of the housing. A conductive transmitting optical subassembly (TOSA) is disposed within the connector end of the housing, forming a continuous conductive barrier therewith. The TOSA includes first and second ends with a narrow passage extending therebetween. The TOSA first end holds an optical package, and the second is configured to receive a fiber optic connector ferrule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.