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25G DWDM Optical Modules Introduction
Time: 2024-01-03
25G has become the mainstream fronthaul interface rate in the 5G era and is widely deployed in 5G networks. With the continuous growth of bandwidth demand, high-capacity DWDM technology has gradually extended to the network edge, covering backbone, metro and edge access scenarios. High-capacity networks based on DWDM can efficiently support upper-layer service networks.
25G SFP28 DWDM optical modules are mainly used to meet the requirements of 25G Ethernet and 5G fronthaul services, and serve as an effective solution for line bandwidth expansion. Their typical features are as follows:
Figure 1 Appearance of Moduletek 25G-DWDM-15KM Product
◆ Complies with SFP28 MSA, 25G Ethernet and CPRI/eCPRI standards
◆ Features a full-duplex transceiver module with a maximum rate of 25.78 Gbps
◆ Adopts an EML laser scheme at the transmit side, providing higher wavelength stability and reliability
◆ Uses PIN or APD devices at the receive side according to different application requirements to improve cost-effectiveness
◆ Supports full C-band wavelength operation with 0.8 nm channel spacing
◆ Enables transmission distance up to 15 km over single-mode fiber
◆ Integrates built-in CDR function for both transmitter and receiver
◆ Has a maximum power consumption of ≤ 2 W over the full operating temperature range
◆ Supports commercial-grade (0~70℃) and industrial-grade (-40~85℃) case operating temperatures
The following figure shows three wireless fronthaul solutions based on gray optics, CWDM colored optics and DWDM colored optics.
Figure 2 Three Wireless Fronthaul Solutions Based on Gray Optics, CWDM Colored Optics and DWDM Colored Optics
The 25G-LR gray optical module uses only a single 1310 nm wavelength, which can support fast and simple site deployment by utilizing idle fiber resources in the existing network. The CWDM colored optics solution can support 6 or more wavelengths, alleviating fiber resource shortages to a certain extent. The most prominent advantage of the DWDM colored optics solution is its significant improvement in system capacity.
Typical 25G DWDM systems currently support more than 40 wavelengths. The single-fiber capacity is 40 times that of gray optics and 6.7 times that of the CWDM solution, greatly reducing the demand for fiber line resources.
Moduletek provides cost-effective 25G DWDM full-wavelength optical modules. Welcome to inquire and place orders.
For further inquiries about the above content, please contact us at: sales@moduletek.com
