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Views: 399 Author: Addams Publish Time: 2025-04-10 Origin: Site
1. What is 400G QSFP-DD DR4 Silicon Photonic Module?
2. Application scenarios: Why do we need 400G QSFP-DD DR4 silicon photonic modules?
3. Technical advantages and market competitiveness
400G QSFP-DD DR4 Silicon Photonic Module uses silicon photonic integration technology and has a transmission rate of up to 400Gbps. Its core feature is the high cost performance and low power consumption brought by the high integration of components, which is very suitable for high-density and large-scale use such as data centers, reducing heat dissipation pressure and procurement costs. The QSFP-DD package supports hot plugging, small size, and wide market compatibility. The "DR4" in the name represents a 4-channel optical module, each with a rate of 100G, which achieves efficient data transmission on one optical fiber through wavelength division multiplexing technology.
The essence of silicon photonic technology is to integrate optoelectronic devices such as lasers, modulators, and detectors on silicon-based chips, reduce the area of PCB boards, reduce power consumption, and improve reliability. Compared with ordinary 400G DR4 optical modules, the power consumption is usually less than 12W (some products can be controlled within 9W), which is suitable for energy conservation and emission reduction needs of data centers. The four optical channels use PAM4 modulation, and the order channel transmits 100G rate, supports backward compatibility with 100G/200G networks, and can achieve flexible networking and smooth upgrade of data centers through branch fiber jumpers.
As a core component of the next-generation data center, the 400G DR4 module is mainly used for:
High-speed connection between switches: In short-distance (within 500 meters) scenarios, it supports high-density, low-latency data transmission to meet the bandwidth requirements of cloud computing and big data.
Server cluster interconnection: Through the MPO interface and single-mode optical fiber, efficient communication between computer rooms or cabinets can be achieved.
With the rapid development of AI technology, 400G modules can provide high-reliability, low-latency transmission guarantee for edge computing nodes and core network equipment, supporting real-time applications such as intelligent driving and telemedicine.
Large enterprise network and cloud service providers can optimize data center architecture by deploying 400G DR4 modules, realize smooth upgrade of old data center 100G network to 400G network, reduce business interruption time, save application replacement costs and reduce operating costs, while meeting future bandwidth expansion needs.
Compared with traditional optical modules, it has the following advantages and market competitiveness
Cost advantage: Silicon photonics reduces the number of discrete devices, simplifies the production process, and reduces costs by 10%-30% compared with traditional solutions.
High integration: Using COB (chip on board) technology, the module is smaller and has better heat dissipation performance
Low power consumption: more suitable for high-density deployment in data centers
Higher integration: Developing towards CPO (cooperative optoelectronic packaging) technology, integrating the optical engine and the switching chip on the same motherboard, further shortening the transmission path and reducing power consumption.
Rate upgrade: Evolving from 400G to 800G/1.6T to match AI computing power and supercomputing requirements.
Intelligent management: Integrate digital diagnostic monitoring functions to achieve real-time performance optimization and fault warning.
Scale growth: It is expected that the global optical module market will reach US$15.58 billion in 2027, and 400G products will become mainstream.
Accelerated domestic substitution: Domestic companies continue to make breakthroughs in core areas such as silicon photonic chips and packaging processes, promoting the increase in the localization rate of high-end optical modules.
400G QSFP-DD DR4 silicon photonics module is becoming a key driving force for data center and communication network upgrades due to its high speed, low power consumption and high integration. With the maturity of silicon photonics technology and the advancement of localization, this module will play a more important role in 5G, cloud computing, AI and other fields. For industry users, choosing an adaptive 400G solution is not only an inevitable choice for technology upgrades, but also an important guarantee for future competitiveness.
