標準號：IEC 61290-10-4-2007
中文標準名稱：光纖放大器.試驗方法.第10-4部分:多通道參數.用光譜分析儀的內插輻射體減少法
英文標準名稱：Optical amplifiers - Test methods - Part 10-4: Multichannel parameters - Interpolated source subtraction method using an optical spectrum analyser
標準類型：M33
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：M33
國際標準分類號：33.180.30
適用范圍：This part of IEC 61290 applies to all commercially available optical amplifiers (OAs) andoptically amplified subsystems. It applies to OAs using optically pumped fibres (OFAs basedon either rare-earth doped fibres or on the Raman effect), semiconductor optical amplifiers(SOAs) and waveguides (POWA).The object of this standard is to establish uniform requirements for accurate and reliablemeasurements, by means of the interpolated source subtraction method using an opticalspectrum analyzer. The following OA parameters, as defined in Clause 3 of IEC 61291-1, aredetermined:? channel gain, and? channel signal-spontaneous noise figure.This method is called interpolated source subtraction (ISS) because the amplifiedspontaneous emission (ASE) at each channel is obtained by interpolating from measurementsat a small wavelength offset around each channel. To minimize the effect of sourcespontaneous emission, the effect of source noise is subtracted from the measured noise.The accuracy of the ISS technique degrades at high input power level due to the spontaneousemission from the laser source(s). Annex A provides guidance on the limits of this techniquefor high input power.An additional source of inaccuracy is due to interpolation error. Annex A provides guidance onthe magnitude of interpolation error for a typical amplifier ASE versus wavelengthcharacteristic.NOTE 1 All numerical values followed by (?) are suggested values for which the measurement is assured. Othervalues may be acceptable but should be verified.NOTE 2 General aspects of noise figure test methods are reported in IEC 61290-3.