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DWDM network

10 Blogs

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Common Solutions for A Secured DWDM Network

Common Solutions for A Secured DWDM Network DWDM (Dense Wavelength Division Multiplexing) is an optical technology used in fiber optics to increase bandwidth over existing fiber optic backbones. Due to the large capacity, high survivability and flexibility, DWDM technology is common to be seen in backbone network and long haul transmission. However, in the actual cases, problems like optical fiber faults and line interruption may affect the communicatio...
Posted on June 20, 2019 By FS.COM
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Case Study: 16CH DWDM to Realize 4x10G over 460km

Our customer is going to design a long-haul 4x10G OTN network project using single mode fiber beyond 465 km, actually nearly 500 km, as shown in the following figure. Link loss is 0.3 dB on per KM. Site 1, 2 & 6 are AC powered sites. Site 3, 4 & 5 are DC Powered sites. AC and DC power are available on both DC1 & DC 2. The network switches they use include Cisco WS-C4500X-16, Cisco WS-C4500X-32, Huawei S6720-54C-EI-48S-AC, Huawei S5720-56C-EI-48S-AC, Juniper EX4550-32F. Customers' req...
Posted on July 1, 2018 By FS.COM
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Extend DWDM Network Transmission Distance With Multi-Service Transport Platform

What is multi-service transport platform? It includes DWDM products like DCM, EDFA, etc. DCM network/transport is essential for long haul DWDM services. Multi-service transport platform provides a flexible and high density DWDM network transmission.
Posted on May 9, 2017 By FS.COM
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Passive DWDM vs. Active DWDM

DWDW is short for dense wavelength division multiplexing. It is an optical multiplexing technology used to increase bandwidth over existing fiber networks. DWDM works by combining and transmitting multiple signals simultaneously at different wavelengths on the same fiber. It has revolutionized the transmission of information over long distances. DWDM can be divided into passive DWDM and active DWDM. This article will detail these two DWDM systems. Passive DWDM Passive DWDM systems have no ac...
Posted on February 22, 2017 By FS.COM
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Complete Analysis on DWDM Technology

Complete Analysis on DWDM Technology It has been over 20 years since DWDM technology first came on the scene, and in the last two decades it has revolutionized the transmission of information over long distances. At present, DWDM technology is so widely applied that we almost forget that there was a time when it did not exist and when accessing information from the other side of the globe was expensive and slow. DWDM Technology: Data in a Rainbo...
Posted on November 28, 2016 By FS.COM
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An Overview of DWDM Technology and DWDM System Components

Dense Wavelength Division Multiplexing (DWDM) is reserved for very close frequency spacing. This blog introduces DWDM technology and DWDM system components.
Posted on April 8, 2015 By FS.COM
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Dispersion Compensation Module for Long-haul DWDM System

In recent years, DWDM (dense wavelength division multiplexing) technology has made tremendous progress on transmission capacity, which is defined by optical signal modulation method and transmission bandwidth. As the transmission bandwidth is fixed, allowable dispersion values are in inverse proportion to the square of transmission speed. Therefore, the faster the transmission speed, the more important the compensation of accumulated chromatic dispersion over transmission bandwidth. This paper w...
Posted on February 3, 2015 By FS.COM
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OADM vs. ROADM: What's the Difference?

Over the past few years, the use of wave division multiplexing (WDM) to introduce more bandwidth on a single mode fiber (SMF) becomes very popular. To fulfill the requirement of bandwidth flexibility and operational efficiency, the optical add/drop multiplexer (OADM) was introduced to multiplex and route different channels of light into or out of a single mode fiber. The traditional OADM used the fixed lasers/filters for fixed wavelengths, but now it can not meet the increasing use of bandwidth,...
Posted on September 30, 2014 By FS.COM
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Difference Between SONET/SDH and DWDM

The next generation of SONET (Synchronous Optical Network) or SDH (Synchronous Digital Hierarchy) equipment continues to be well accepted by service providers and is being usefully deployed into networks right now to carry continually increasing network traffic. When compared with traditional SONET, the next generation of DWDM (Dense Wavelength Division Multiplexing) is seen as a simple architecture, scalability, high capacity add/drop, multiple ring terminations, multi-services, and multiple fa...
Posted on May 6, 2014 By FS.COM