YXFiber 800G Optical Module Solution Helps Data Centers

Introduction

Against the backdrop of the rapid development of global cloud computing, big data, and artificial intelligence, data centers are facing the triple challenges of transmission bandwidth, energy efficiency, and operation and maintenance costs. 400G can no longer meet the needs of data centers. Faced with this situation, Yongxinfeng launched the 800G optical module solution, which takes ‌silicon photonics integration technology‌ and ‌intelligent power consumption management‌ as the core to provide a high-density, low-latency, and easily scalable interconnection base for hyperscale data centers, driving the comprehensive upgrade of computing infrastructure.

1. Why do we need 800G optical modules?

Faced with the exponential growth of data traffic, the 400G network rate has been unable to cope with the surge in data processing and transmission needs. The emergence of 800G optical modules has alleviated this situation. 2024 is a key year for 800G optical modules to officially enter large-scale commercial use. Cloud service providers and data centers have begun large-scale procurement to upgrade the network architecture of data centers. In the future, 800G is expected to become the mainstream of large data centers.

Transition from 400G to 800G optical modules (bandwidth hybrid)

2. YXF-OSFP-800G-2SR4 short-distance technical solution

In 800G short-distance applications, due to the increase in speed, the transmission distance of multimode optical fiber is limited. Even with OM4 optical fiber, it can only reach 50m. However, for direct transmission between cabinets in data centers, 50m transmission distance is sufficient at a lower cost.

To support ultra-high-speed 800 transmission, YXF-OSFP-800G-2SR4 uses PAM4 modulation and high-performance DSP (digital signal processor), and uses 8 100G DSP and CDR (clock data recovery) units to simplify the architecture and improve efficiency. This solution is based on VCSEL lasers, and all channels operate at the same wavelength to ensure synchronous transmission of optical signals. Data transmission uses 2x4 channels in parallel, and two 12-core MPO interfaces are separated. Each interface uses 8 optical fibers for transmission and reception, achieving efficient short-distance high-speed interconnection.

3. YXF-OSFP-800G-2DR4 medium and short distance interconnection solution

In 800G medium and short distance applications, only single-mode optical fiber can achieve a transmission distance of 500m. Like YXF-OSFP-800G-2SR4, to support ultra-high-speed 800 transmission, YXF-OSFP-800G-2DR4 also uses PAM4 modulation and high-performance DSP (digital signal processor), and uses 8 100G DSP and CDR (clock data recovery) units to simplify the architecture and improve efficiency. This solution is based on DML lasers, and all channels operate at the same wavelength to ensure synchronous transmission of optical signals. Data transmission uses 2x4 channels in parallel, and two 12-core MPO interfaces are separated. Each interface uses 8 optical fibers for transceiver and each 12-core MPO interface transmits 400G rate, and the two MPO interfaces transmit 800G rate together to achieve efficient short-distance high-speed interconnection.

4. YXF-OSFP-800G-2FR4 medium-distance interconnection solution

In the 2km 800G data transmission scenario, in order to save optical fiber resources, YXF-OSFP-800G-2FR4 uses wavelength division multiplexing technology to combine four 100G optical signals together and transmit 400G rate in one optical fiber. At the same time, in order to meet the signal quality of 800G high-speed data transmission and reduce the generation of bit errors and packet loss, the system introduces powerful forward error correction (FEC) to improve signal quality and efficiently correct bit errors to ensure the stability of high-speed transmission.

The YXF-OSFP-800G-2FR4 solution adopts PAM4 modulation and high-performance DSP (digital signal processor), using 8 100G DSP and CDR (clock data recovery) units to simplify the architecture and improve efficiency. The solution is based on EML lasers and uses wavelength division multiplexers (WDM) at both the transmitting and receiving ends to efficiently multiplex multiple signals onto a single optical fiber that complies with the CWDM4 standard. In terms of physical connection, the solution has two duplex LC interfaces, each of which transmits 400G rate. The two LC interfaces together transmit 800G rate, achieving efficient short-distance high-speed interconnection.

5. Conclusion

Yongxinfeng 800G optical module is not only an upgrade of transmission media, but also a catalyst for the qualitative change of data centers from "connection tools" to "computing power nerve centers". 800G optical modules are at the forefront of meeting the growing demand for data transmission speed and efficiency. Its advanced technology supports high-speed, high-bandwidth applications and has become the key to modern network infrastructure. With its outstanding performance and scalability, 800G optical modules will reshape network connections in all walks of life.

YXFiber is committed to providing high-performance, reliable and cost-effective products to help promote the development of future network connections. YXFiber 800G optical modules are designed to meet the needs of next-generation networks and provide excellent speed and efficiency. Choose YXFiber's innovative 800G optical module solutions to keep your network at the forefront and lead the new era of future connections!