With the continuous development of network technology, the speed and efficiency of data transmission have become the key factors for network fluency and stability. 40G QSFP+ ER4 optical module as the latest generation of optical fiber transmission module, with its high speed, high efficiency, long distance transmission and other characteristics, is gradually being widely used in data centers, enterprise networks and other fields.

I.Product information about the 40G QSFP+ ER4 optical module

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

The 40G QSFP+ ER4 optical module is a transceiver module designed for long distance optical communication applications. The design conforms to 40GBASE-ER4 standard in IEEE 802.3ba standard. The module converts four 10Gb/s electrical signals into four CWDM optical signals and multiplexes them into one 40Gb/s optical transmission. Instead, at the receiving end, the module photodemultiplexes the 40Gb/s input into four CWDM channel signals and converts them into four channel output electrical signals.

The central wavelengths of the four CWDM channels are 1271nm, 1291nm, 1311nm and 1331nm, which are members of the CWDM wavelength grid defined in ITU-TG694.2. It contains a duplex LC connector for the optical interface and a connector for the 148-pin electrical interface. In order to reduce light 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 Protocol (MSA) and has a form factor, optical/electrical connection, and digital diagnostic interface. It is designed to meet the harshest external operating conditions, including temperature, humidity and electromagnetic interference.

III. Application scenarios of 40G QSFP+ ER4 optical modules

At present, with the rapid development of cloud computing, big data, artificial intelligence and other technologies, the demand for high-speed, high-density and high-reliability network communication continues to rise. In this market background, 40G QSFP+ ER4 optical module as an advanced transmission technology, will usher in a wide range of applications in data centers, communication network construction, optical communication and other fields. The 40G QSFP+ ER4 optical module is suitable for a variety of application scenarios. The following scenarios are typical:

Data center: As the scale of data centers increases and the demand for data transmission rates increases, 40G QSFP+ ER4 optical modules become the ideal transmission module within and between data centers.

Man/LAN: In the MAN and LAN, 40G QSFP+ ER4 optical module can be used to increase the network transmission rate and expand the network capacity.

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

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