What is PD IEC/TR 62343-6-9- Measurements of crosstalk in wavelength selective switches about?
PD IEC/TR 62343-6-9 is a safety standard on dynamic modules.
PD IEC/TR 62343-6-9, which is a Technical Report describes a study of the impact of WSS dynamic crosstalk on the optical network and includes dynamic crosstalk measurement examples for three types of WSS.
The generating mechanism and the generation factor of dynamic crosstalk in WSS are clarified, and the evaluation of same-channel crosstalk and different-channel crosstalk is shown to be necessary.
Who is PD IEC/TR 62343-6-9- Measurements of crosstalk in wavelength selective switches for?
PD IEC/TR 62343-6-9 on mechanisms and measurements of crosstalk in wavelength is relevant to:
- Manufacturers of optical amplifiers
- Manufacturers of DWDM system
- Manufacturers of measurement apparatus
- Manufacturers of wavelength selective switches
- Testing authorities
- Module builders, designers, and developers
Why should you use PD IEC/TR 62343-6-9- Measurements of crosstalk in wavelength selective switches?
One of the key optical components for DWDM systems is a wavelength division multiplexing device. An AWG (arrayed waveguide grating) module has been deployed for first and second-generation DWDM systems.
Due to the increasing demand for communication capacity, more flexible optical communication systems, such as mesh networks, have been required. PD IEC/TR 62343-6-9 assists with a wavelength-selective switch (WSS) module which plays a key role in realizing the optical switch function in the optical cross-connect system so that the performance of the WSS directly impacts on the performance of the optical cross-connect systems, such as the capacity, transmission distance, etc. For AWG modules, only static performance, such as insertion loss, bandwidth, pass-band ripple, polarization-dependent loss (PDL), polarization mode dispersion (PMD), coherent crosstalk, etc., has been evaluated. For dynamic performance parameters, the influence not only on the controlled channel but also on other channels should be considered. Considering this background, the influence of WSS dynamic crosstalk on cross-connect system performance and the measurements of dynamic crosstalk has been demonstrated. PD IEC/TR 62343-6-9, which is a technical report is based on Optoelectronic Industry and Technology Development Association (OITDA) – Technical Paper (TP), TP15/TP-2013, "Dynamic crosstalk measurement for wavelength selective switches.”
Overall, PD IEC/TR 62343-6-9 is useful as it summarizes the classification of dynamic crosstalk and static crosstalk and that of same-channel crosstalk and different-channel crosstalk are independent. Therefore, four combinations (dynamic-same-channel crosstalk, dynamic-different-channel crosstalk, static-same-channel crosstalk, and static-different-channel crosstalk). PD IEC/TR 62343-6-9 shows the measurement result of same-channel crosstalk for the MEMS type WSS.
