28-05-2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

15-01-2026 - For details, please click the attachment icon below to view or download for a good reading experience or resources.LC/UPC, Single Fiber, Side-A, FMU Plug-in Module#43711 FMU-MC084761EM 8 Channels CWDM Mux Demux, 1470-1610nm, with Monitor and Expansion Port, 2.0dB Typical IL, LC/UPC, Dual Fiber, FMU Plug-in Module#78163

Mux Demux Optical Layer Performance Metrics Test Report

19-12-2025 - Mux Demux Optical Layer Performance Metrics Test Report Introduction This report presents FS’s standardized optical performance test procedure for Mux Demux, exemplified by the 40-channel DWDM Mux Demux (P/N: FMU-D402160M3). The test process is fully standardized, repeatable, and traceable, in full compliance with ITU‑T standard. The same methodology is applicable to all FS Mux Demux modules, including DWDM, CWDM, and LWDM Mux Demux, ensuring consistent reliability, performance, and stability, underscoring FS’s commitment to delivering high-quality optical networking solutions. image.png Test Objectives To test key optical parameters for the FS Mux Demux, including insertion loss, passband ripple, optical bandwidth, polarization dependent loss (PDL), channel isolation, etc. Provide quantitative test data to objectively demonstrate its suitability for high-reliability optical networks, including data center interconnect, metropolitan area networks, and long-haul transmission applications. Test results serves as a basis for network design, equipment selection and performance evaluation. Test Highlights Comprehensive optical parameter assessment: Covers key metrics including insertion loss, passband ripple, return loss, optical bandwidth, polarization dependent loss (PDL), and channel isolation. Real-time automated measurement: Utilizes a WDM Automated Test Platform to synchronously capture and analyze multiple parameters, ensuring precise and reliable measurements. Performance consistency verification: Test results validate the stability and performance of FS Mux Demux within high-reliability optical network environments. Value endorsement: Provides standardized, repeatable, and traceable data, offering objective grounds for customer selection, deployment, and trust establishment. Broad applicability: The methodology applies to FS DWDM, CWDM, and LWDM Mux Demux modules, ensuring consistent performance verification across diverse application scenarios. Test Environment 1.Test Product List The following products are required for Mux Demux optical performance test: Equipment Name P/N Function Mux Demux FMU-D402160M3 Device under test, employed to assess its optical performance and key characteristics. Light Source TSL-550 Provides stable optical signals at the target wavelengths for Mux/Demux. Optical Switch Unit OSU-100 Automatically routes optical signals between different Mux/Demux channels and test equipment for sequential or parallel measurements. Polarization Controller PCU-100 Adjusts the polarization state of input signals to evaluate polarization dependent loss (PDL) and overall device performance. Optical Power Meter UC8728 Measures the power of each Mux/Demux channel to assess insertion loss and overall optical performance. 2.Testbed Description This test environment encompasses both hardware and software components. The hardware section primarily comprises the equipment listed in the table: the Mux Demux under test, light source, optical switch unit, polarization controller, and optical optical power meter. The software section employs a WDM Automated Test Platform to collect optical parameters from each channel in real time, enabling simultaneous measurement of multiple indicators and data analysis to ensure precise and reliable test results. image.png 3.Test Environment The light source, optical switch unit, polarization controller, and optical power meter form an integrated system that is ready for immediate use without additional configuration. During testing, the polarization controller is connected to the testing board and the Mux Demux under test (FMU-D402160M3), which is then connected to the optical power meter. The complete test environment is successfully established and the WDM Automated Test Platform performs real-time test of relevant optical layer performance metrics, synchronously acquires multiple parameters for comprehensive analysis. image.png Test Results All relevant optical performance parameters of the Mux Demux have been thoroughly measured under standardized test conditions. The detailed results are presented in the table below. Parameter Value Insertion Loss ≤ 5.0dB Passband Ripple ≤ 1.5dB 1dB Optical Bandwidth ≥0.25nm 3dB Optical Bandwidth ≥0.44nm Polarization Dependent Loss (PDL) ≤ 0.7dB Adjacent Channel Isolation ≥ 25dB Non-adjacent Channel Isolation ≥ 29dB 1.Insertion Loss Test During the Insertion Loss Test, we employ a WDM Automated Test Platform to capture real-time insertion loss values for each channel and validate variations between different channels. The test results precisely quantify the loss characteristics of each channel, ensuring all remain within standard range. For customers, this signifies that the FS Mux Demux exhibits low insertion loss, guaranteeing high reliability and stable performance. It also provides objective, referenceable data for network design and equipment selection. image.png 2.Passband Ripple Test During Passband Ripple Test, we measured the optical power across each channel's passband using the WDM Automated Test Platform to record passband ripple in real time. Test results confirm that passband ripple for all channels meet specifications. For customers, this signifies that the FS Mux/Demux reliably transmits optical signals, effectively mitigating the risk of signal distortion caused by passband non-flatness, thereby ensuring long-term stable and reliable network operation. image.png 3.Optical Bandwidth Test In Optical Bandwidth Test, the 1dB and 3dB optical bandwidths were measured for each channel respectively. Using the WDM Automated Test Platform, the wavelength range at which power decayed to maximum values of 1dB and 3dB is recorded. Results confirm all channel bandwidths meet the standard, ensuring signal integrity and spectrum efficiency. For customers, this demonstrates FS Mux Demux's capability to reliably transmit signals in multi-channel environments, supporting high-capacity network deployments without introducing channel interference. image.png 4.Polarization Dependent Loss (PDL) Test Polarization Dependent Loss Test involves adjusting the input signal's polarization state via a polarization controller, whilst simultaneously measuring output power variations across each channel to determine PDL values. Test results indicate that the PDL for each channel of the FS Mux Demux remains within standard limits, demonstrating the equipment's capability to reliably transmit signals of varying polarization states. For customers, this ensures signals within the optical network do not experience differential attenuation due to polarisation shifts, thereby enhancing the system's long-term reliability and operational stability. image.png 5.Channel Isolation Test Channel Isolation Test measures signal crosstalk between adjacent and non-adjacent channels. Test results demonstrate that the FS Mux Demux meets design specifications for isolation, effectively minimising interference between signals of different wavelengths. For customers, this signifies robust signal independence across channels within multi-channel optical networks, ensuring high transmission quality and reliability for stable service operation. image.png Conclusion The Mux Demux has passed all standardized performance tests conducted in accordance with industry and FS internal requirements. All optical and functional metrics meet specifications, with stable operation and no critical defects observed. The equipment meets design expectations and is approved for commercial deployment. Note: The results relate only to the items tested. The test results are random, and they are within specifications.

20-08-2025 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

28-05-2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

28-05-2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

28-05-2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

28-05-2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

Mux Demux and OADM Quick Start Guide V3.0

28-05-2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.

28-05-2024 - For details, please click the attachment icon below to view or download for a good reading experience or resources.