One plus one redundant optical interconnects with automated recovery from light source failure
US9876329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2016 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Oct 5, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical interconnect device is provided that includes a first vertical cavity of surface emitting laser (VCSEL), connected in parallel with a second VCSEL, an optical coupler that is configured to direct the light output from the first VCSEL and the second VCSEL to a single optical fiber, where a common connection of each VCSEL is controlled using a MOSFET/inverter, where in normal operation only one of the first VCSEL or the second VCSEL is enabled, where a common connection of each VCSEL is not directly connected to a ground, and a microcontroller that is configured to switch output from the first VCSEL to the second VCSEL in the event of failure by the first VCSEL, where a failure of the first VCSEL does not result a communication in link failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.