Apparatus and methods for timing tone based transmitter skew alignment in an optical communication system
US10038498B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2016 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for transmitter alignment in an optical communication system are provided. In certain configurations, a method of correcting for transmitter skew is provided. The method includes generating an optical signal using a transmitter based on an in-phase (I) component and a quadrature-phase (Q) component of a transmit signal, the optical signal having a baud rate that is based on a timing tone. The method further includes receiving the optical signal as an input to a receiver, and generating a signal vector representing the optical signal using the receiver. The signal vector includes an I component and a Q component. The method further includes calculating a power of the timing tone based on processing the signal vector using a tone power calculator of the receiver, and correcting for a skew of the transmitter based on the calculated power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.