• May 16. 2020

DWDM technology can use the wavelength of laser to transmit data in optical fiber according to bit parallel transmission or string line transmission. DWDM optical module is the optical module which combines this technology, so it has the characteristics of high bandwidth and long distance transmission. Today ETU-Link will introduce the DWDM optical module. Brief introduction of DWDM optical module...

• July 10. 2020

DWDM optical module belongs to dense wavelength division multiplexing (DWDM) technology, which uses different wavelengths to multiplex multiple optical signals into a single fiber to transmit data without consuming any power. DWDM optical module is an optical module for dense wavelength division multiplexing. It has 45 channels to choose (C17-C61) and wavelength range (1563.86 ~ 1528.77nm). The co...

• December 17. 2020

WDM is a technology to solve the shortage of optical fiber resources. Its main purpose is to increase the available bandwidth of optical fiber without laying more fibers. CWDM and DWDM are two kinds of WDM technology which are widely used in telecommunication. They are mainly used in WDM / demultiplexer. WDM / demultiplexer should be used together with WDM optical module. Next ETU-LINK will show y...

• February 23. 2021

There are four types of 10G CWDM optical modules: 10G SFP+ CWDM, 10G XFP CWDM, 10G SFP+ DWDM, and 10G XFP DWDM. Among them, the CWDM series of optical modules have an optional band of 1270-1610nm with an interval of 20nm, and the DWDM series of optical modules are optional. It is C17-C61. Next, ETU-LINK will introduce to you what 10G CWDM optical modules are available. 1、10G SFP+ CWDM se...

• May 26. 2022

In this blog, ETU-Link will take 10G SFP+ DWDM optical module as an application case to introduce its application in DWDM optical transmission system. The equipment used in this case are: DWDM wavelength division multiplexer & demultiplexer, 10G SFP+ DWDM 80KM optical module, EDFA optical amplifier, 10G switch. Schematic analysis: As the total length of the link is 500KM, and the capacity requ...

• July 21. 2022

In the construction of metropolitan area network, wavelength division multiplexing equipment is an important part, mainly including CWDM coarse wavelength division multiplexing equipment and DWDM dense wavelength division multiplexing equipment, so what is the difference between the two? In this article, ETU-LINK will tell you the difference between CWDM equipment and DWDM equipment.   1.&nbs...

• October 29. 2022

This blog ETU -LINK will take you to read what is WDM, before that we first to get to know why the WDM technology, it appears from the background of the Internet, development rapidly in a short few decades, so operators urgently needs a lot of network capacity to meet growing customer service requirements.   For network expansion, simply increase the transmission capacity linearly by increasi...

• March 04. 2023

In this blog, ETU-LINK will talk about 10G DWDM Tunable module and its differences from ordinary DWDM optical module. The wavelength of 10G conventional SFP+ DWDM optical module is fixed, while 10G SFP+ DWDM Tunable optical module can be configured to output different DWDM wavelengths. The wavelength tunable optical module has the characteristics of flexible...