berita perusahaan tentang QSFP28 100G LR4 Optical Transceiver: High-Performance 10km Long-Reach Solution for Data Center and Telecom Networks

QSFP28 100G LR4 optical transceiver is a high-performance optical module designed for 100GBASE-LR4 long-distance transmission over single-mode fiber. The QSFP28 100G LR4 Huawei optical transceiver provides stable, low-latency, and energy-efficient connectivity for modern data center and telecom backbone networks. Supporting transmission distances up to 10km over duplex LC SMF, it is widely used in cloud computing, enterprise aggregation layers, and high-speed interconnect architectures. Built on advanced LAN-WDM technology, this module ensures reliable wavelength multiplexing and demultiplexing for four independent 25Gbps channels. As network bandwidth demand continues to grow, this optical transceiver becomes a critical component for scalable and cost-efficient 100G deployment. It is fully compliant with IEEE 802.3ba standards and optimized for interoperability with major switching platforms, making it a preferred choice for carrier-grade and enterprise-grade optical networks.

The QSFP28 100G LR4 optical transceiver is a hot-pluggable, parallel optical module designed to support 100 Gigabit Ethernet transmission using four wavelength-division multiplexed lanes. Each lane operates at approximately 25.78Gbps, combining to achieve a total aggregate data rate of 103.125Gbps. The module operates over the 1310nm wavelength band using LAN-WDM (Local Area Network Wavelength Division Multiplexing) technology, which reduces chromatic dispersion and improves signal integrity over long distances.

Physically, QSFP28 (Quad Small Form-factor Pluggable 28) is a compact module form factor that integrates high-density optical and electrical interfaces into a single transceiver package. The LR4 variant specifically supports long reach (LR) transmission up to 10 kilometers over standard single-mode fiber (SMF) with duplex LC connectors.

This Huawei-compatible optical transceiver integrates a transmitter optical subassembly (TOSA), receiver optical subassembly (ROSA), digital diagnostics monitoring (DDM), and a gearbox IC for electrical-to-optical signal conversion. It complies with IEEE 802.3ba 100GBASE-LR4 standards and ensures backward compatibility with QSFP28 ports in modern network switches and routers, especially in high-speed Ethernet environments. Huawei ecosystem compatibility further ensures seamless deployment in enterprise-grade infrastructures.

In modern networking environments, enterprises face increasing pressure from bandwidth-intensive applications such as cloud computing, AI workloads, virtualization, and high-definition video streaming. Traditional 10G or 40G infrastructures often struggle to meet these demands, resulting in congestion, latency spikes, and inefficient resource utilization.

The QSFP28 100G LR4 optical transceiver addresses these challenges by offering a high-density, scalable upgrade path to 100G connectivity. One of its key advantages is long-reach capability, enabling up to 10km transmission without signal regeneration. This significantly reduces the need for intermediate active equipment, lowering both capital expenditure (CAPEX) and operational expenditure (OPEX).

Another major benefit is its energy efficiency. Compared to multiple lower-speed links, a single 100G LR4 module reduces power consumption per bit transmitted, improving overall data center sustainability. In addition, its standardized IEEE 802.3ba compliance ensures interoperability across multiple vendor platforms, reducing vendor lock-in risks.

From a deployment perspective, the QSFP28 LR4 module minimizes cabling complexity by using duplex LC connectors instead of multi-fiber MPO solutions. This simplifies network architecture while improving maintainability. Furthermore, its robust optical performance ensures low bit error rates (BER), which is critical for mission-critical applications such as financial trading systems, cloud storage backbones, and telecom aggregation layers.

In real-world applications, the QSFP28 100G LR4 optical transceiver is widely deployed in data center interconnect (DCI), metro Ethernet, and enterprise backbone networks. For example, in a hyperscale data center, multiple leaf-spine switches require high-speed uplinks to aggregate traffic between server clusters. By using 100GBASE-LR4 modules, operators can establish stable 10km optical links between separate data halls or even geographically distributed facilities.

Technically, the module converts 4×25Gbps electrical signals from the host ASIC into four independent optical wavelengths in the 1310nm spectrum. These wavelengths are multiplexed into a single fiber pair and transmitted over single-mode fiber. On the receiving end, the process is reversed through optical demultiplexing and signal reconstruction.

The module typically operates within a power envelope of around 3.5W, making it suitable for high-density switching environments where thermal management is critical. It also supports Digital Diagnostic Monitoring (DDM), allowing real-time tracking of temperature, voltage, optical power, and laser bias current. This enables network engineers to proactively detect degradation before failure occurs.

In telecom backbone deployments, service providers use LR4 modules to connect aggregation routers across city-level infrastructures. For instance, a metropolitan network might connect core nodes located in different central offices using 100G LR4 links over existing SMF infrastructure, avoiding costly fiber replacement.

In enterprise scenarios such as banking or cloud service providers, QSFP28 LR4 modules ensure low-latency interconnects between primary and disaster recovery sites. Their consistent optical performance ensures deterministic network behavior, which is essential for synchronized databases and real-time transaction processing systems.

Overall, this module acts as a foundational building block for scalable 100G architecture, offering both flexibility and high reliability in demanding environments.

The QSFP28 100G LR4 optical transceiver delivers a powerful combination of long-distance transmission, high bandwidth, and operational efficiency for modern network infrastructures. Its ability to support 10km single-mode fiber links makes it ideal for both data center interconnects and telecom backbone deployments.

With strong interoperability, low power consumption, and advanced monitoring capabilities, it provides a reliable foundation for scalable 100G network expansion.