Reduction of wavelength selective switch (WSS) filter-based impairment using selective subcarrier adjustment
US9735913B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Jan 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0032
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method may include transmitting, by an optical device, a first channel. The first channel may have a first set of subcarriers. The first channel may be attenuated during transmission by a filter associated with a wavelength selective switch. The method may further include transmitting, by the optical device, a second channel. The second channel may have a second set of subcarriers. The second channel may be attenuated during transmission by the filter associated with the wavelength selective switch. The first channel and the second channel being included in a super-channel. The first set of subcarriers may be selected based on a first signal quality factor associated with attenuation of the first set of subcarriers by the filter. The second set of subcarriers may be selected based on a second signal quality factor associated with attenuation of the second set of subcarriers by the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.