The C-LIGHT 800G OSFP SR8 optical transceiver is a high-performance 800Gbps optical module designed for next-generation AI data centers, high-performance computing (HPC), and InfiniBand NDR networks. Based on the OSFP form factor and advanced PAM4 modulation technology, it provides high-density, low-latency, and energy-efficient optical interconnect solutions for large-scale computing clusters.

The 800G OSFP SR8 module adopts eight-channel 100G PAM4 optical transmission technology, integrates VCSEL laser arrays and PIN photodetector arrays, and supports up to 100m transmission over OM4 multimode fiber.

1. Overview of 800G OSFP SR8 Optical Transceiver

The 800G OSFP SR8 is an optical transceiver module designed to deliver 800Gbps Ethernet and InfiniBand connectivity through an OSFP pluggable package.

Compared with previous-generation 400G optical modules, the 800G OSFP SR8 doubles network bandwidth while improving port density and reducing the number of optical connections required in AI data center architectures.

The module is designed with:

• OSFP pluggable form factor

• 8-channel 100G PAM4 optical lanes

• 850nm VCSEL transmitter technology

• PIN receiver array

• 2xMPO-12 or 1xMPO-16 optical interface

2. Key Features of 800G OSFP SR8

2.1 800Gbps High-Speed Transmission

The 800G OSFP SR8 optical transceiver supports an aggregate data rate of 800Gbps through eight independent optical channels.

• 8 × 100G PAM4 optical lanes

• 800GAUI-8 electrical interface

• High bandwidth optical connectivity

• Low latency communication

2.2 Advanced PAM4 Modulation Technology

The module uses PAM4 modulation technology to improve transmission efficiency. Each optical lane operates at 53.125GBd with PAM4 signaling, enabling higher bandwidth transmission while maintaining manageable signal speed requirements.

• Improved bandwidth efficiency

• Support for next-generation Ethernet networks

• Optimized for AI cluster communication

2.3 850nm VCSEL Optical Technology

The 800G OSFP SR8 uses an 850nm VCSEL laser array combined with PIN photodetector arrays to achieve reliable short-distance multimode fiber transmission.

• 8-channel VCSEL transmitter array

• 8-channel PIN receiver array

• Optimized for data center short-reach applications

2.4 Low Power Consumption Design

Power efficiency is critical for modern AI data centers. The 800G OSFP SR8 provides high-speed connectivity with optimized power consumption.

• Power consumption: less than 12W

• Operating temperature: 0°C to 70°C

• Designed for high-density deployments

3. Technical Specifications of 800G OSFP SR8

4. Optical Performance Characteristics

4.1 Transmitter Optical Specifications

• Data rate per lane: 53.125 GBd

• Modulation format: PAM4

• Center wavelength: 840nm to 868nm

• Typical wavelength: 860nm

• Average launch power per lane: -3dBm to 4dBm

• TDECQ maximum: 4.4dB

• TECQ maximum: 4.4dB

5.1 AI Data Center Networks

AI training clusters require extremely high bandwidth communication between GPUs, switches, and storage systems. The 800G OSFP SR8 provides high-speed optical connectivity for AI fabrics and GPU clusters.

5.2 InfiniBand NDR Networks

The module supports InfiniBand NDR applications and is designed for high-performance computing environments requiring ultra-low latency and high throughput.

5.3 High Performance Computing (HPC)

Supercomputing platforms require reliable optical interconnects with high bandwidth and low latency. The 800G OSFP SR8 provides an efficient solution for HPC cluster communication.

5.4 Data Center Switch Interconnect

The module supports high-density switch-to-switch and switch-to-server connections in modern hyperscale data centers.

6. Advantages of C-LIGHT 800G OSFP SR8

High Bandwidth: Supports 800Gbps transmission for AI and cloud networks.

Low Latency: Optimized for HPC and InfiniBand networking.

High Density: OSFP package supports next-generation switch platforms.

Reliable Performance: Fully tested optical and electrical performance.

Flexible Deployment: Supports OM3 and OM4 multimode fiber applications.

7. Why Choose C-LIGHT 800G OSFP SR8?

With the rapid development of AI computing and large-scale GPU clusters, optical interconnect bandwidth requirements continue increasing. C-LIGHT 800G OSFP SR8 provides a scalable solution for customers upgrading from 400G networks toward 800G AI infrastructure.

Through advanced PAM4 technology, OSFP packaging, and high-performance optical components, C-LIGHT helps customers build efficient, reliable, and future-ready data center networks.

8. Conclusion

The 800G OSFP SR8 optical transceiver is an important solution for next-generation AI data centers, HPC systems, and high-speed Ethernet networks. With 800Gbps bandwidth, 850nm VCSEL technology, and 100m OM4 transmission capability, it provides the performance required for modern high-density optical interconnect applications.

FAQ: 800G OSFP SR8 Optical Transceiver