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Introduction to Common 100G Optical Module Types, Advantages, and Application Scenarios


Abstract:In the realm of modern networking, the demand for high-speed data transmission has surged exponentially, fueled by the proliferation of cloud computing, big data analytics, and multimedia streaming applications. In response to this demand, 100G optical modules have emerged as essential components in facilitating rapid data transfer within networks. This article aims to provide a comprehensive overview of common 100G optical module types, their advantages, and application scenarios.

Overview of 100G Optical Modules

100G optical modules represent a significant advancement in optical communication technology, offering data transmission speeds of up to 100 gigabits per second (Gbps). These modules serve as crucial interfaces between network equipment and optical fiber infrastructure, enabling efficient and reliable data transmission across various network topologies. With their compact form factors and versatile designs, 100G optical modules play a vital role in modern data centers, enterprise networks, telecommunications infrastructure, and beyond.

Introduction to Classification of 100G Optical Modules

Several standardized classifications exist for 100G optical modules, each tailored to meet specific performance requirements and application scenarios. Some of the most common classifications include:

QSFP28-100G-SR4: QSFP28-100G-SR4 optical modules are designed for short-distance multi-mode transmission within data center environments. 100G SR4 support four parallel channels, enabling high-speed connectivity over limited distances, making them suitable for intra-data center links and storage area networks (SANs).

QSFP28-100G-LR4: QSFP28-100G-LR4 optical modules cater to long-range single-mode transmission requirements, offering extended reach and reliability. 100G LR4 are commonly deployed in inter-data center connectivity, metropolitan area networks (MANs), and other long-haul applications.

QSFP28-100G-CWDM4: QSFP28-100G-CWDM4 optical modules leverage Coarse Wavelength Division Multiplexing (CWDM) technology to optimize spectral efficiency and bandwidth utilization. They are ideal for applications requiring increased capacity without the need for additional fiber resources.

QSFP28-100G-ER4: QSFP28-100G-ER4 optical modules are engineered for ultra-long-distance transmission spanning hundreds of kilometers. They offer superior reach and signal integrity, making them suitable for inter-city links, regional network deployments, and other extended-reach applications.

QSFP28-100G-PSM4: QSFP28-100G-PSM4 optical modules utilize parallel single-mode fiber (PSM4) technology to maximize bandwidth utilization and minimize signal degradation. They are well-suited for high-density data center environments and applications requiring ultra-high-speed connectivity.

100G QSFP28 ZR4 80KM: The 100G QSFP28 ZR4 80KM optical module provides unparalleled reach, allowing data to traverse distances of up to 80 kilometers without compromising performance or reliability. It is ideal for long-haul telecommunications and wide-area network deployments.

Advantages of 100G Optical Modules

100G optical modules offer numerous advantages over traditional transmission technologies, including:

· High-speed data transmission: With data rates of up to 100Gbps, 100G optical modules enable rapid exchange of information, supporting bandwidth-intensive applications and reducing latency.

· Scalability: Optical modules can be easily upgraded or replaced to accommodate evolving network requirements, ensuring scalability and future-proofing network infrastructure.

· Compact form factor: The small size of optical modules allows for high-density deployment, optimizing rack space and reducing overall footprint in data center environments.

· Reliability: Optical modules are engineered to withstand harsh environmental conditions and provide robust performance, ensuring consistent and reliable data transmission.

· Flexibility: Optical modules support various transmission distances and wavelengths, making them suitable for a wide range of applications and network topologies.

Introduction to Application Scenarios of 100G Optical Modules

100G optical modules find extensive use in diverse application scenarios, including:

· Data centers: Optical modules are deployed in data centers to facilitate high-speed connectivity between servers, switches, and storage devices, supporting virtualization, cloud computing, and big data analytics.

· Telecommunications networks: Optical modules form the backbone of telecommunications networks, enabling long-distance transmission of voice, data, and video traffic across regional and global networks.

· Enterprise networks: Optical modules are utilized in enterprise networks to interconnect geographically dispersed offices, support remote access, and enable high-speed Internet connectivity.

· High-performance computing: Optical modules play a crucial role in high-performance computing environments, supporting the rapid exchange of data between compute nodes, accelerators, and storage systems.

Utilizing WHGEARLINK QSFP28 100G Optical Modules to Build a 100G Network

WHGEARLINK QSFP28 100G optical modules offer a versatile and cost-effective solution for building high-performance 100G networks. Whether deployed individually or in conjunction with other optical modules, WHGEARLINK QSFP28 100G modules provide exceptional performance, reliability, and interoperability, making them an ideal choice for mission-critical applications.

By leveraging the advantages of WHGEARLINK QSFP28 100G optical modules, organizations can streamline network deployment, reduce operational costs, and future-proof their infrastructure to meet the growing demands of modern data center environments. Whether used for intra-data center connectivity, inter-data center links, or long-haul network deployments, WHGEARLINK QSFP28 100G optical modules offer a scalable and reliable solution for building robust 100G networks that can support the most demanding workloads and applications.

In conclusion, 100G optical modules play a pivotal role in enabling high-speed connectivity and facilitating the seamless transmission of data across modern networks. By understanding the different types of 100G optical modules available, their advantages, and application scenarios, organizations can make informed decisions when designing, deploying, and optimizing their network infrastructure to meet the evolving demands of today's digital landscape.



1. What are the 100G optic standards?

The standard of 100G QSFP28 optical module is mainly defined by two organizations, IEEE and Multi-Source Agreement (MSA). IEEE defines the specifications for QSFP28 SR4, QSFP28 LR4 and QSFP28 ER4.


2. What is the wavelength of 100G QSFP?

Common 100G QSFP28 optical module wavelengths are 850nm, 1310nm, CWDM, and LAN WDM.


3. What is 100G QSFP28?

The full name of QSFP28 is Quad Small Form-factor Pluggable Plus 28, which means four-channel small form-factor pluggable. The rate per channel is up to 28Gpbs.

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