This part of IEC 61290 applies to optical fibre amplifiers (OFA) using active fibres, containing rare-earth dopants, presently commercially available.
The object of this International Standard is to establish uniform requirements for accurate and reliable measurements, of the noise figure, as defined in 3.1.17 of IEC 61291-1, by means of the electrical spectrum analyzer (ESA) method.
The present test method is based on direct electrical noise measurement and it is directly related to its definition including all relevant noise contributions. A different test method based on the optical spectrum analyzer can be used, particularly for different noise parameters (such as the signal-spontaneous noise factor) but it is not included in the object of this standard.
NOTE 1 All numerical values followed by ( ) are suggested values for which the measurement is assured. Other values may be acceptable but should be verified.
NOTE 2 A measurement accuracy for the average noise factor of ±20 %( ), respectively ±1 dB, should be attainable with this method (see clause 6).
NOTE 3 General aspects of noise figure test methods are reported in IEC 61290-3.
BS EN 61290-3-2:2003 history
2009BS EN 61290-3-2:2009 Optical amplifiers. Test methods. Noise figure parameters. Electrical spectrum analyzer method
2009BS EN 61290-3-2:2008 Optical amplifiers - Test methods - Noise figure parameters - Electrical spectrum analyzer method
2003BS EN 61290-3-2:2003 Optical fibre amplifiers - Basic specification - Test methods for noise figure parameters - Electrical spectrum analyzer method