What is a DWDM Mux?

What is a DWDM Mux?

DWDM (Dense Wavelength Division Multiplexing) is an optical multiplexing technology used to increase bandwidth over existing fiber optic backbones. The data from various different sources is put together on optical fiber in which each signal travels at the same speed on its own light wavelength.

What is DWDM in networking?

Dense wavelength-division multiplexing (DWDM) is an optical fiber multiplexing technology that is used to increase the bandwidth of existing fiber networks. It combines data signals from different sources over a single pair of optical fiber, while maintaining complete separation of the data streams.

How many channels are supported by DWDM?

DWDM, supports up to 80 simultaneous wavelength channels, with each of the channels only 0.8nm apart. CWDM technology offers a convenient and cost-efficient solution for shorter distances of up to 70 kilometers. For distances between 40 and 70 kilometers, CWDM tends to be limited to supporting eight channels.

What are the main components of a DWDM system?

A DWDM system generally consists of five components: Optical Transmitters/Receivers, DWDM Mux/DeMux Filters, Optical Add/Drop Multiplexers (OADMs), Optical Amplifiers, Transponders (Wavelength Converters).

What is DWDM capacity?

State-of-the-art DWDM systems support up to 192 wavelengths on a single pair of fiber, with each wavelength transporting up to 100Gbit/s capacity – 400Gbit/s and one Terabit/s on the horizon. DWDM provides the ultimate scalability and reach for fiber networks …

What is used in DWDM?

Typically, the components used in a DWDM system include optical transmitters and receivers, DWDM mux/demux, OADM (optical add/drop multiplexers), optical amplifiers and transponders (wavelength converters). Following part will introduce these devices respectively.

How much channel spacing is required for DWDM?

0.8 nm apart
Today’s DWDM systems typically support 96 channels spaced at 0.8 nm apart within the 1550 nm C-Band spectrum. Because of this, DWDM systems can transmit a huge quantity of data through a single fiber link as they allow for many more wavelengths to be packed onto the same fiber.

What is DWDM Mux Demux?

DWDM Mux/Demux Dense Wavelength-Division Multiplexers (DWDM) are capable of combining up to 40 unique wavelengths for propagation over a single duplex LC fiber cable. DWDM mux/demux units are completely passive devices, and require zero maintenance, upgrades, or electricity to function properly.

What is 3R in DWDM?

“3R” means re-timing, re-shaping, and re-amplifying. OEO 3R Converter for Wavelength Conversion. OEO 3R converter can fit various applications and can be installed in the network flexibly. It is a very popular component in DWDM and CWDM networks.

What is SDH DWDM?

SONET/SDH is the dominant technology deployed in most metro and long distance networks. DWDM (Dense Wavelength Division Multiplexing) is essentially a method of increasing the bandwidth available over existing fibre. This makes it cost-effective, as DWDM can be used instead of laying more fibre strands.

What is DWDM Mux DeMux?

What are the components of DWDM?

How to test the insertion loss of 40-ch DWDM MUX/DEMUX?

We will use Cisco Catalyst 4948E switch and Cisco compatible DWDM SFP+ modules as light source to test the insertion loss of a 40-CH DWDM MUX/DEMUX provided by FS.COM. This DWDM MUX/DEMUX has a typical insertion loss of 3.0 dB. Channel 25 port and Channel 60 port will be tested.

What is insertion loss in DWDM?

Insertion loss, usually measured by dB, is the total optical power loss caused by the insertion of optical components. As for DWDM Mux Demux, there are several types of port, such as channel port, line port, monitor port, 1310nm port and expansion port.

What is the insertion loss of the DWDM Mux C25 RX port?

As the line port of the 40CH DWDM Mux Demux could be regarded as a fiber adapter, we can easily get the insertion loss of the DWDM Mux C25 Rx port: Insertion Loss (CH25) = Optical Power 1 – Optical Power 2 = +1.08dBm – (-2.15dBm) = 3.23dB (REF value)

What are the 40ch DWDM MUX ports?

Here offers the detail of FS.COM 40CH DWDM Mux ports for reference, including 3.5dB typical IL line and channel ports for multiplexing different signals into one fiber, 1.5dB IL 1310nm port for the existing legacy traffic, and 26dB IL monitor port for easy troubleshooting without affecting traffic.