Views: 0 Author: Site Editor Publish Time: 2022-09-16 Origin: Site
Transmission distance is a core parameter of optical modules, and the market demand for ultra-long-distance transmission optical modules is also steadily increasing. Ultra-long-distance transmission solutions have become the development trend of the future communication industry. At the same time, with the rapid development of cloud computing, big data and Ethernet, operators have upgraded data centers to higher data rates, which has further increased the demand for 100G, and the 100G QSFP28 ZR4 optical module came into being. This article, ETU-LINK, will describe the 100G QSFP28 ZR4 optical module.
100G ultra-long-distance transmission optical modules include 100G QSFP28 ER4 and 100G QSFP28 ZR4 optical modules. The longest transmission distance of ER4 is 40KM, and the longest transmission distance of ZR4 is 80KM.
1. Product Features
100G QSFP28 ZR4 optical module is small in size and low in power consumption, with a maximum power consumption of 6.5W, duplex LC optical interface, using a hot-swappable QSFP28 package, supporting 0-70°C commercial-grade operating temperature, in line with the latest SFF-8665/8636 Described QSFP28 industry standard and related MSA, and can use digital diagnostic function through I2C interface, the maximum rate can be up to 103.125Gbps (4x25G NRZ), cost-optimized, support 100G Ethernet, can achieve up to 80KM transmission, when the system is turned on During FEC, the transmission distance through a pair of single-mode fibers can reach up to 90KM.
2. Transmission principle
On the transmitter side, the 4-channel serial data (NRZ) is recovered by CDR and passed to 4 laser drivers, thereby controlling 4 lasers with center wavelengths of 1296nm, 1300nm, 1305nm and 1309nm respectively. Optical signals are multiplexed to single-mode fiber through standard LC connectors. At the receiving end, the optical signals of 4 channels are amplified by SOA, and then the optical signals are demultiplexed by the integrated optical demultiplexer. Each optical signal is recovered by a PIN detector and then passed through a transimpedance amplifier and CDR to a CAUI-4 compliant output driver.
