Arbitrary grid wavelocking using digitally generated out-of-band tones
US9537577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2014 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Oct 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0256
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A device may insert a set of tones into a transmitter signal at a set of frequency offsets from a set of transmitter channels associated with a set of transmitter channel wavelengths. The set of transmitter channels may include a first channel being associated with a first quantity of bandwidth and a second channel associated with a second quantity of bandwidth. The first quantity of bandwidth may be different from the second quantity of bandwidth. The device may repeatedly adjust the transmitter signal to align the set of transmitter channel wavelengths based on a set of observed responses to the set of tones, generated based on the transmitter signal passing through an optical filter, failing to match a set of expected responses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.