DWDM Networks

DWDM Networks over Long Distance Transmission

With the ever-increasing need for higher bandwidth, DWDM technology has been one of the most favorable optical transport network (OTN) applications. In this post, we will reveal DWDM-based network solutions over various transmitting distances as well as some suggestions for the DWDM networks deployment. DWDM Networks Basics As usual, let’s review some basics of DWDM networks. In this part, we…

Bi-Directional-DWDM-Operation

What Is DWDM?

Internet demand is always growing, especially the hugely popular video streaming services are increasing greatly. This provides a threat to the service provider. As the hottest topic in the telecommunication industry, DWDM offers unprecedented bandwidth which promises an effective solution to the challenges posed by the Internet growth. But what is DWDM, do you really know? What Is DWDM? DWDM wiki…

M-Net use DWDM solution to deliver 500Gbps over a single wavelength

Passive CWDM VS DWDM – Which to choose?

With current industry advancements trend that has equalized costs of transceivers, in a technical battle of CWDM vs DWDM, more advancements are in DWDM. Let’s compare passive CWDM vs DWDM from pure technical application viewpoint: CWDM vs DWDM – Channel Uniformity: As CWDM spectrum for 18 channels spans from 1260nm up to 1620nm compared to DWDM C-band 1530 – 1565…

Why to Use DWDM System in MAN and What Are Its Networking Schemes?

On account that DWDM (Dense Wavelength Division Multiplexing) technology can make full use of the huge bandwidth resources of optical fiber, greatly increasing the transmission capacity of the system and reducing the transmission cost, the technology has been widely used in the large-capacity transmission of long distance network and backbone network. If DWDM technology is introduced into the metropolitan area…

How Much Do You Know about Multiplexing Technology in Optical Transmission Network?

In optical transmission network, multiplexing technology is considered as an effective means to expand the transmission capacity of existing optical fiber networks. It can increase the transmission capacity of optic fiber in the most cost saving way, so as to quickly meet the increasing demand for high bandwidth. Now, some multiplexing technologies have been widely used and mature in optical…

Do You Know How Fast Your Fiber Optic Internet Can Be?

It is no secret that the technology is continually evolving, so does the demand for consistent and accessible information and entertainment. From the old 56 kbqs crawl of dial-up, to the early 1 Mbqs copper connections and all the way to the existing popular 1 Gbqs, 10 Gbqs/40 Gbqs fiber optic connections, we’ve gone through a drastic improvement to maintain…

How to Upgrade to 500G with 40CH DWDM Mux/Demux System?

Faced with the multifaceted challenges of increased service needs, fiber exhaust and layered bandwidth management, the main challenge for service providers is to provide more and cheaper bandwidth and integrated services using different methods. Today, this article is to introduce a method that upgrades your network to 500G with DWDM (dense wavelength division multiplexing) technology. Why Use DWDM Technology? As…

Introduction to Fiber Optic Attenuator

Fiber optic attenuators are often used to control the optical signal strength in fiber optic links. For example, in a DWDM based system, the DWDM employs multiple wavelengths and channels in different communication protocols and bit rates requiring precise tuning of the power levels of the channel signals. Fiber optic attenuators are often used to adjust the optical power signal…