The 400G QSFP-DD FR4 transceiver is a 400Gb/s Quad Small Form Factor Pluggable Dual Density (QSFP-DD) optical transceiver that supports transmission distances up to 2KM over duplex LC connectors. The 400G optical transceiver converts eight 53.125Gb/s (PAM4) electrical inputs into four CWDM optical signals and multiplexes them into a single 400Gb/s optical transmission. At the receiving end, the sfp module multiplexes the 400Gb/s optical input photodemultiplexing into four channels of CWDM optical signals and converts them into eight channels of 50Gb/s (PAM4) electrical output data. The wavelength of the 4 CWDM channels are 1271nm, 1291nm, 1311nm, and 1331nm, which are mainly used for data center interconnect and 400G Ethernet.
The 400G OSFP-DD FR4 optical module uses four uncooled EML lasers with four CWDM wavelengths, which are more suitable for 400G interconnections. The 400G OSFP-DD FR4 optical transceiver can be connected via LC duplex fiber optic patch cords.
Compare with 400G QSFP-DD FR4 transceiver module, 400G QSFP-DD FR8 optical module is a kind of 2*200G QSFP optical module, which use 50G PAM4 modulation technology and has eight built-in circuit channels, which is more suitable for multi-channel data communication. UnitekFiber’s 400G QSFP-DD FR8 fiber transceiver can be connected to 200G QSFP FR4 optical module at the opposite end through 2*LC duplex fiber patch cord.
400G SFP transceiver are primarily used for interconnections within and across data centers. Within data centers, 400G QSFP-DD single mode SFP are used to connect servers and storage devices to support large-scale parallel computing and high-speed data analysis. In the data center room, the 400G fiber transceiveras are used to support high-speed data transmission over long-distance, meeting the communication needs of data centers in different geographic locations. In addition, the 400G single mode SFP can also be used in mobile base stations, passive wavelength division systems, SAN/NAS storage networks.
UniteFiber’s 400G QSFP-DD FR4 optical module provides 400Gb/s optical transmission. This high-speed transmission capability can meet the demand for high-speed, high-capacity data transmission in the field of modern optical communications. The 400G optical transceiver is designed to meet the harshest external operating conditions, including temperature, humidity and electromagnetic interference. The 400G fiber transceiver utilizes a duplex LC interface, which provides a very high degree of functionality and feature integration, and can be accessed through a two-wire serial interface. This high reliability ensures the stability and reliability of optical communications. The QSFP-DD FR4 optical transceiver uses a low-power design, which reduces energy consumption and conforms to the trend of sustainable development. The low-power design can reduce the operating cost of optical communication system, and is conducive to environmental protection.
"FR" refers to 2km transmission distance, and "4" implies there are 4 optical channels.
The QDD-FR4-400G using duplex LC/UPC connector, and single-mode fiber patch cord.
While there is no direct thermal management mechanism (no integrated heat-sink), the QSFP-DD allows a maximal power consumption of 12 watts (initial spec).
A 400G QSFP-DD optical transceiver typically supports various types of interfaces, including Ethernet, InfiniBand, and Fibre Channel.
400G QSFP-DD utilizes a four-channel small form-factor duplex design and is backward compatible,supporting the insertion of modules or connectors packaged in existing QSFP+/QSFP28/QSFP56 into the QSFP-DD port.
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The optical transceiver high-speed performance and seamless integration have greatly improved our network efficiency.
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The 400G QSFP-DD optical transceivers have transformed our cloud networking infrastructure and the signal integrity and scalability they provide are truly exceptional.
I have received the package and put some of the optical transceivers to use. The 400G modules are working as expected and we don’t have any issues at the moment. We are very happy with the quality of your product.
