With the continuous development of network technology, the speed and efficiency of data transmission have become key factors in network fluency and stability. As the latest generation of optical transmission modules, 40G QSFP+ ER4 optical modules are gradually being widely used in data centers, enterprise networks, and other fields due to their high speed, high efficiency, and long-distance transmission characteristics.

Analysis of the working principle of 40G QSFP+ ER4 optical module products

The 40G QSFP+ ER4 optical transceiver module is a transceiver module designed specifically for long-distance optical communication applications. The design complies with the 40GBASE-ER4 standard in the IEEE 802.3ba standard. The module converts 4-channel 10Gb/s electrical signals into 4-channel CWDM optical signals and multiplexes them into a single 40Gb/s optical transmission. Conversely, at the receiving end, the module demultiplexes the 40Gb/s input light into 4 CWDM channel signals and converts them into 4-channel output electrical signals.

The center wavelengths of the four CWDM channels are 1271nm, 1291nm, 1311nm, and 1331nm, respectively, and belong to the CWDM wavelength grid defined in ITU-TG694.2. It contains a duplex LC connector for optical interface and a connector with 148-pin electrical interface. In order to reduce optical dispersion in long-distance systems, the module must use single-mode fiber (SMF).

The 40G QSFP+ ER4 optical module is designed according to the QSFP Multi-Source Agreement (MSA), with form factor, optical/electrical connectivity, and digital diagnostic interfaces. Its design meets the most severe external operating conditions, including temperature, humidity, and electromagnetic interference.

Application scenarios of 40G QSFP+ ER4 optical module products

The rapid development of cloud computing, big data, artificial intelligence and other technologies has resulted in an increasing demand for high-speed, high-density and high-reliability network communication. Against this market background, 40G QSFP+ ER4 optical transceiver, as an advanced transmission technology, will be widely used in data centers, communication network construction, optical communication and other fields. 40G QSFP+ ER4 optical transceiver is suitable for a variety of application scenarios.  Here are some typical scenarios:

Data center: With the expansion of data center size and the increase in demand for data transmission rate, 40G QSFP+ ER4 optical modules have become the ideal transmission module within and between data centers.

Metro/local area network: In metro and local area networks, 40G QSFP+ ER4 optical modules can be used to increase network transmission rates and expand network capacity.

5G communication: 5G communication technology has extremely high requirements for network transmission rate and stability.  The 40G QSFP+ ER4 optical module can help achieve high-speed transmission in 5G communication networks.

Fibre Channel: In Fibre Channel applications, 40G QSFP+ ER4 optical modules enable high-speed data transmission and improve the efficiency of storage area networks.