Method and apparatus for detection and correction of time skew in an optical transmitter
US9184834B1 · kind B1 · utility
27Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Sep 25, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/364
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In some embodiments, an apparatus includes an optical transmitter system that defines an interferometric structure and has an in-phase portion and a quadrature portion. The optical transmitter system has a transmission configuration and a calibration configuration. The interferometric structure can produce an output associated with a skew between the in-phase portion and the quadrature portion of the optical transmitter system when in the calibration configuration. The skew is associated with a digital domain, an analog domain and an optical domain of the optical transmitter system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.