High Channel Isolation DWDM Module 30dB CWDM Sfp Module For Telecom Networks

The TFF type CWDM module adopts thin film filter technology to achieve multiplexing and demultiplexing of multi wavelength signals through precise optical design. Its core advantage lies in supporting efficient wavelength division multiplexing, which can simultaneously transmit multiple coarse wavelength division channels (typically 18 wavelengths, spaced 20nm apart) in a single optical fiber, significantly improving fiber utilization. The module has low insertion loss (typical value ≤ 1.5dB) and high channel isolation (≥ 30dB), effectively suppressing crosstalk between adjacent channels and ensuring signal transmission quality. In addition, TFF technology endows the module with excellent temperature stability (wavelength drift ≤ 0.05nm within the range of -5 ℃~+70 ℃), enabling it to maintain stable performance under complex environmental conditions, making it suitable for medium to short distance transmission scenarios such as urban area network access and enterprise private networks.

In response to the demand for long-distance transmission, the ultra-low loss TFF type CWDM module further reduces insertion loss to ≤ 1.0dB (typical value ≤ 0.8dB) by optimizing the optical coating process and structural design. This performance improvement directly extends the signal transmission distance, reduces the number of relay devices, and thus lowers the system deployment cost. The module adopts high-precision filters to ensure a flat transmission response within a wide wavelength range (1270nm~1610nm), while strictly controlling the temperature design (-5 ℃~+70 ℃) to suppress wavelength drift and ensure the stability of long-distance links. Its low loss characteristics are particularly suitable for scenarios such as urban backbone networks and data center interconnection, which can significantly improve the overall efficiency and reliability of the network.

To meet the demand for high-density network deployment, the compact TFF type CWDM module adopts a miniaturized design, with external dimensions that can be reduced to 80mm × 50mm × 10mm, reducing the volume by about 40% compared to standard modules. This design integrates optical components and optimizes mechanical structure to achieve multi-channel multiplexing while significantly saving rack space. The module supports the installation of multiple units in a 1U rack, suitable for small environments such as data center cabinets and fiber optic distribution frames. The high-density characteristics make it an ideal choice for scenarios such as 5G fronthaul and enterprise network expansion, which not only enhances cabling flexibility but also simplifies network management complexity.

The TFF type coarse wavelength division multiplexing module is specifically designed for optimizing telecommunications operators and data center networks, supporting flexible channel configurations (such as 4/8/16 wave options) to meet the bandwidth requirements of networks of different scales. Its high reliability (MTBF ≥ 100000 hours) and low power consumption characteristics (≤ 2W/module) comply with telecom grade equipment standards, and are compatible with commonly used hot swappable interfaces in data centers (such as LC/SC). The module undergoes rigorous environmental testing (such as vibration, impact, EMC) to ensure stable operation under harsh conditions. In addition, its plug and play design simplifies the deployment process and is suitable for scenarios such as telecommunications metropolitan area networks, data center interconnection, and enterprise private networks, helping to build efficient and scalable communication infrastructure.