Noise measurement for optical amplifier and a system therefor
US5521751A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1995 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Feb 13, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and a system for measuring a noise figure of an optical amplifier which independently detects two different output powers generated from the optical amplifier under measurement. The generation of the first output power is in synchronization with a space period of an input optical pulsed signal, while the generation of the second output power is in synchronization with the mark period of the input optical pulsed signal. The-optical pulsed signal is an intensity-modulated signal given at a repetition period which is sufficiently shorter than the life time of carriers or the life time of ions in a metastable level of the optical amplifier under measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.