BS EN 61290-10-3-2003 光学纤维放大器.试验方法.多道参数.探测法

标准号：BS EN 61290-10-3-2003
中文标准名称：光学纤维放大器.试验方法.多道参数.探测法
英文标准名称：Optical amplifiers - Test methods - Multichannel parameters - Probe methods
标准类型：M33
发布日期：2003/9/1 12:00:00
实施日期：2003/9/1 12:00:00
中国标准分类号：M33
国际标准分类号：33.180.30
适用范围：This part of IEC 61290 applies to commercially available optical fibre amplifiers (OFAs) using active fibres containing rare-earth dopants as described in the following. The object of this international standard is to establish uniform requirements for accurate and reliable measurements of the multichannel gain and noise parameters as defined in IEC 61291-4. The test methods described in this standard use small-signal probes to obtain the multichannel gain and noise parameters while one or more lasers set the saturation condition for the OFA. These methods are classified as indirect in that there is not a laser source at each wavelength of the multichannel plan. Multichannel parameters are estimated from the probe data. IEC 61290-10-1 and IEC 61290-10-2 are test methods for measuring noise parameters using pulse techniques. These methods are direct in that the multichannel source is required to have a laser at each wavelength for which multichannel parameters are to be measured. Probe techniques provide clear advantages for measuring multichannel gain characteristics in that a simple source configuration can provide parameters for a wide range of multichannel plans. Either a small-signal laser or a broadband noise source serves as the probe signal, and single or multiple lasers are used to set the OFA saturation condition. Pulse modulation of the saturating sources may optionally be used to measure ASE at or near the saturating laser wavelengths without the contaminating effect of source spontaneous emission. If pulse modulation is not used, the source spontaneous emission must be measured, and its effect removed from the measured result. For a multichannel source with high spontaneous emission or at high total input power, the source noise subtraction method can lead to large uncertainty. The probe techniques described herein are indirect in that laser sources are not required at each channel frequency. A measurement error results from inhomogeneous effects that are DUT dependent. The main source of this error is spectral hole burning (see [1]