• June 15. 2023

The development of 100G Ethernet has brought a large market demand for 100G optical modules, among which 100G QSFP28 has become the most popular 100G optical module with it small size and low power consumption. 100G QSFP28 optical modules include SR4, eSE4, PSM4, LR4, CWDM4, ER4, ZR4, etc. In this article, ETU-LINK will focus on 100G QSFP28 LR4 optical modules. LINK) will focus on introducing...

• June 06. 2023

At present, most 100G optical modules in the market are transmitted using 4 -channels 25Gb/s parallel or WDM,such as 100G SR4, 100G PSM4, 100G LR4, 100G CWDM4 optical modules, etc. In order to reduce costs and improve transmission efficiency, the industry has proposed the 100G single-lambda specification, which refers to the use of PAM4 optical signaling and coding for single-lambda 100G tran...

• May 31. 2023

In this blog, ETU-LINK will introduce the QSFP-100G-ER4 Lite optical module, which uses LWDM multiplexing technology and operates in the wavelength range of 1295, 1300, 1304, and 1309. The optical signal is multiplexed by a WDM wavelength division multiplexer and transmitted on a single-mode fiber through an industry-standard LC connector. At the receiving end, the SOA amplifies the signal before ...

• May 27. 2023

Recently, 400G Ethernet has become a hot topic in the communication industry. It is both an outlet and a challenge. Network equipment manufacturers have launched 400G switches, and optical communication products have also launched 400G optical modules. In this article, ETU-LINK is about the impact of the emergence of 400G switches and 400G optical modules on data centers.   First of all,...

• May 19. 2023

The previous storage technology only uses the storage device as an auxiliary device of the server. The large-capacity data exchange between servers can only rely on traditional networks, and cannot adapt to the development of IT technology in terms of speed, security, cross-platform sharing, and unlimited expansion. Under such circumstances, SAN technology came into being. fiber Channel SCSI ...

• May 16. 2023

Before understanding the differences between single mode and multimode, we need to know that light propagates in a fiber as a set of independent beams, which propagate at a specific angle to the fiber axis and are called modes. We can distinguish between single mode and multimode by transmission mode. Single mode fiber supports one mode, while multimode fiber supports multiple modes. Below, ETU-LI...

• May 15. 2023

The Alcatel-Lucent OmniSwitch 6860 Virtual Chassis Full Layer 3 Ethernet Switch is a compact, high-density Gigabit Ethernet (GigE) and 10 Gigabit Ethernet platform designed for converged networks. There are four models of this series: OS6860-P24, OS6860E-48, OS6860E-P24Z8, and OS6860E-U28. The following ETU-LINK will introduce the OS6860E-48 switch and optical module solutions separately. &nb...

• May 12. 2023

Why don’t data centers use multi-mode OM2 fiber anymore? In this article, ETU-Link will reveal the answer for you. Firstly, OM2 is mainly a traditional 50/125 micron graded index multi-mode fiber. OM2 fiber is based on LED light source in terms of standard and design, and has low bandwidth requirements. It cooperates with LED to transmit 1000Mbit/s and lower rates. OM2 will withdraw from the data ...