Photonic communications device with an FM/PM discriminator and related methods
US8879919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2011 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Jan 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/506
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communications device includes a transmitter device having first and second optical sources and generating respective first and second modulated optical carrier signals at first and second optical carrier frequencies based upon an input signal. The communications device also includes an optical waveguide coupled to the transmitter device, and a receiver device coupled to the optical waveguide and including an FM-PM discriminator having a transfer function with a positive slope portion and a negative slope portion so that the first optical carrier frequency is positioned on the positive slope portion and the second optical carrier frequency is positioned on the negative slope portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.