How 400G Coherent Optical Communication Accelerating Data Centres

With the acceleration of digital transformation and the exponential growth of internet traffic, efficient interconnection between data centres has become an indispensable cornerstone supporting the infrastructure of modern networks. Against this backdrop, 400G coherent optical communication technology has emerged, offering a cutting-edge and efficient solution for data centre interconnection. This article aims to introduce you to the technology of 400G coherent optical devices and the advantages and application scenarios of 400G architecture.

Coherent Optical Communication Technology

Coherent optical communication device technology harnesses the principles of coherent optical communication, employing precise control over the phase, amplitude, and polarisation state of light to facilitate the transmission and processing of information. 400G coherent optical device technology, built upon the foundations of coherent optical communication principles, is optimised for a data transfer rate of 400 gigabits per second (Gbps). This technology further elevates the performance of traditional coherent optical communication, significantly enhancing data transmission speeds to meet the ever-growing demands for network bandwidth and high-speed transfers between data centres.

400G coherent optical communication technology enables more flexible network deployment strategies, including optimisation of spectral efficiency and tunable optical wavelength resources. As a result, it is suitable for long-distance backbone and metropolitan area network transmission and for high-speed interconnection between data centres.

400G Coherent Optical Application in DCI

Incorporating 400G coherent optical communication technology in DCI (Data Centre Interconnect) applications represents a significant stride forward in meeting the ever-growing demands of modern data traffic. By leveraging advanced modulation, digital signal processing, and silicon photonics, the deployment of 400G holds promise in enhancing the bandwidth, efficiency, and scalability of data centre networks.

Network Load Balancing

In DCI applications, 400G coherent optical technology can substantially increase inter-data centre connectivity bandwidth. This enables data centres to more effectively distribute network traffic across data centres, achieving load balancing and thereby enhancing the performance and reliability of the entire network architecture. High-speed connections also ensure real-time efficiency and effectiveness in data synchronisation and backup operations, critical for business continuity.

Large-Scale Cloud Computing

By providing high-bandwidth connections, 400G coherent optical technology enables cloud service providers to manage and scale their network infrastructure more flexibly to support the needs of different customers, including bursts of traffic during peak periods. Additionally, reducing data transmission latency supports real-time data processing and analysis.

Remote Data Backup and Disaster Recovery

400G coherent optical communication technology significantly enhances data backup speed, allowing enterprises to replicate large volumes of data to remote locations within a very short time frame. This greatly reduces the data backup window, ensuring business continuity and data immediacy. During disaster recovery, 400G coherent optical technology ensures high-bandwidth connections, ensuring rapid recovery even for large volumes of data.

Explore FS Solutions of 400G Architecture

The 400G coherent optical communication technology is becoming a key driving force behind the development of fields such as cloud computing, big data processing, and artificial intelligence. As a leading provider of optical fibre communication technology and products, FS not only offers solutions in 400G architecture encompassing hardware design and performance optimisation but also involves overall network architecture planning and deployment strategies. This aims to meet the high-speed and low-latency requirements of future networks, providing users with more reliable and flexible data transmission services.

FS 400G architecture applies to metropolitan optical transmission with its 400G coherent optical module solution, utilising 400G CFP2 coherent modules that support a flexible tunable wavelength range of C-band 191.3~196.1 THz, deployed on Muxponder/Transponder cards in white box DCI devices. Combined with MUX/DeMUX, EDFA, and other equipment, it achieves high-capacity inter-city and medium-long-distance N×200G, N×400G DWDM optical transmission networks. It also supports different modulation modes, facilitating flexible adaptation to various business scenarios. The solution deploys VxLAN through DCI equipment to provide Layer 2 interoperability across regional data centres, which can achieve flexible deployment and migration without affecting the original network architecture to save network construction and operation costs.

Why Choose FS 400G Architecture Solution？

FS is one of the earliest manufacturers globally to offer 400G technology, boasting a diverse portfolio of 400G products. With its outstanding performance and innovative architecture, FS's 400G architecture provides customers with cutting-edge and efficient solutions.

Enhancing Bandwidth Density

A standout benefit of the 400G architecture is the drastic improvement in bandwidth density it brings to the table. In today's digital landscape, where data consumption is growing at an unprecedented rate, traditional networking solutions are rapidly hitting their limits due to space and power consumption constraints. The 400G technology transcends these limitations by facilitating higher data rate transmissions through a single connection. This leap in technology allows for efficient management of burgeoning data traffic, while simultaneously empowering the scalability of network infrastructure without necessitating significant physical expansions. Such density enhancements are particularly critical in data centre environments, where maximising space and power efficiency directly translates to operational cost savings and performance improvements.

Supporting Increased Device Connectivity

In an era dominated by the Internet of Things (IoT), the astronomical rise in the number of connected devices poses a significant challenge in maintaining seamless service delivery. The 400G coherent optical communication technology is adept at accommodating this explosion in connectivity demands, offering the bandwidth necessary to support a multitude of devices concurrently. This capability is indispensable for both consumer-oriented and industrial applications, where uninterrupted service and the fluid integration of myriad devices are paramount. For data centres, this means being able to facilitate the high-speed, reliable connections essential for hosting an ever-growing array of IoT devices and services. The 400G architecture enables data centres to evolve into more efficient, resilient, and scalable infrastructures capable of handling the connectivity requirements of the future, making it an ideal choice for organisations looking to future-proof their network and maximise their investment.

Elevating Networks with Coherent Optical

Driven by the current rapid growth in data demand, the latest coherent technology offers a swift and cost-effective solution to accelerate networks. In today's world, the key to network performance lies not in the quantity of data but in the speed at which data can be moved from one place to another.

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