Method and system for redundant light sources by utilizing two inputs of an integrated modulator
US10567086B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2019 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jun 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/212
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and systems for redundant light sources by utilizing two inputs of an integrated modulator are disclosed and may include: an optoelectronic transmitter in a semiconductor die with first and second laser sources for providing optical signals to the semiconductor die, the transmitter comprising an optical modulator with a first input waveguide coupled to the first laser source and second input waveguide coupled to the second laser source, the optoelectronic receiver being operable to: configure the first laser source to provide an optical signal to the first input of the optical modulator; and if the first laser source does not provide an optical signal, configure the second laser source to provide an optical signal to the second input of the optical modulator. The first laser source may be optically coupled to the first input waveguide and the second laser source optically coupled to the second input waveguide using grating couplers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.