YXFiber Teaches You How to Choose the Right Optical Module

With the rapid development of optical communication, large data centers operate thousands of devices, including a significant number of optical modules. These modules convert electrical signals into optical signals and vice versa, making them essential for fiber optic interconnections. Each optical link requires an optical module at both ends, resulting in substantial usage. When selecting optical modules, it is important to consider price, quality, basic features, and stability.

Preliminary Selection of Optical Modules

Optical modules can be categorized by data rate (e.g., 1.25Gb/s, 10Gb/s, 40Gb/s, 100Gb/s,200Gb/s,400Gb/s), transmission distance (e.g., 550 meters, 10 kilometers, 40 kilometers, 80 kilometers, 120 kilometers, 180 kilometers, 200 kilometers), and fiber optic connector type (LC, SC, and electrical port modules). Common packaging types include SFP, SFP+, 1X9, XFP, QSFP, CFP, GBIC, CXP, CFP2, CFP4, CWDM, and DWDM series. Currently, SFP optical modules are popular due to their small size and affordability.

Compatibility of Optical Modules with Equipment

Compatibility issues can arise as optical modules might not work with all equipment. Therefore, it is crucial to confirm module compatibility with the vendor before purchasing. The market offers two types of high-performance optical modules: generic ones and those branded by original switch manufacturers.

Performance Parameters of Optical Modules

Optical modules need to undergo initial testing for receive and transmit sensitivity, central wavelength, packet loss, and operating temperature to ensure they match product specifications. Common wavelengths include 850nm (for short-distance transmission), 1310nm, and 1550nm (for long-distance transmission). The 1550nm wavelength can be used for ultra-long-distance WDM transmission when combined with DWDM multiplexers and optical amplifiers.

Lifespan and After-Sales Service of Optical Modules

The typical lifespan of an optical module is around six years, with laser aging affecting performance. Monitoring the laser's bias current can help predict its lifespan. It is advisable to choose vendors offering at least a three-year warranty. Modules with DDM (Digital Diagnostic Monitoring) features provide performance monitoring and lifespan prediction.

YXFiber, we maintain high standards in the production process of optical modules to ensure quality. Poor production quality can impact the entire link's transmission quality, leading to issues such as weak signal reception and packet loss. Quality is crucial for our business. We aim to achieve high speed, high stability, and improved heat dissipation in optical modules to ensure longevity, providing customers with high-quality products and efficient technical after-sales service.