Embedded apparatus to monitor simulated brillouin scattering from Raman amplifier in fiber optics transmission system
US10250326B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2013 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | May 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/0797
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The embedded apparatus disclosed herein may measure reflection coefficient values associated with back reflections in a fiber optics transmission system during a variable detection window to detect normal conditions, simulated Brillouin scattering (SBS), or excessive back reflections triggering remedial action. For example, the back reflections may indicate normal conditions if the reflection coefficients measured during an entire detection window remained below a threshold or a maximum reflection coefficient observed therein was below the threshold. Alternatively, the back reflections may trigger remedial action if the reflection coefficients measured in the entire detection window exceeded the threshold or a minimum reflection coefficient observed therein was above the threshold. Otherwise, the back reflections may indicate the SBS effect if the reflection coefficients measured during the detection window included points above and below the threshold or the minimum and maximum reflection coefficients observed therein were below and above the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.