Do You Know How to Save Fibers in Your Networks?

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As we all know, in order to meet the
increasing demand for higher bandwidth and faster transmission speed, more and
more fiber optic cables have been put into use. However, as fiber infrastructures
are getting more complicated, only adding numerous cables is no longer a
feasible and economical option. Service providers and network managers are
always seeking for more cost-effective ways to enhance network capacity. Then
do you know how to save fibers in your network to achieve an economical
cabling? Here may have the answer you want to know.

 

A Key Technology—CWDM

CWDM stands for Course Wave Division
Multiplexing. It can combine or multiplex more than one wavelength over one
fiber. The CWDM is limited to 16 wavelengths and is typically deployed at
networks up to 80 km since optical amplifiers cannot be used due to the large
spacing between channels. And it has a wide spectrum and accommodates eight
channels. This wide spacing of channels allows for the use of moderately priced
optics. Generally, CWDM is used for lower-cost, lower-capacity,
shorter-distance applications where cost is an important decision factor.

 

A Critical Component—CWDM
Mux/Demux

The most common use of CWDM Mux/Demux
is to increase fiber networks capacity without at the expense of deploying more
fiber cables, which service providers and network managers are seeking for.
CWDM Mux/Demux modules are bidirectional optical multiplexers which enable
several optical signals at different wavelengths to pass through a single fiber
strand. It can combine up to 18 different wavelength signals coming from a
single optical fiber to 18 separate optical fibers. It’s this feature that
makes CWDM Mux/Demux a good choice for high bandwidth but low cost solution.
Here are two common types of CWDM Mux/Demux.

 

CWDM Mux/Demux Over Dual Fiber

The CWDM Mux/Demux over dual fiber is a
universal device capable of coming up to 18 optical signals into a fiber pair.
It can support up to 18 CWDM wavelengths between ITU-T G.694.2 1270 nm to 1610
nm in 20 nm increments or ITU-T G.652 1270 nm and 1290 nm. This CWDM Mux/Demux
has good performance and excellent environmental stability. And it is typically
used with optical amplifiers.

 

CWDM Mux/Demux Over Single Fiber

The CWDM Mux/Demux over single fiber
can multiplex up to 18 optical single fibers and support a brand architecture
such as scalable point-to-point links to two fiber protected rings. It can
multiplex several channels such as 2, 4, 5, 8, 9, 16 and 18 channels on a
single fiber, data rates or protocols over single fiber optic link without
interfering with each other. Besides, this CWDM Mux/Demux is simple to be installed
and requires no configuration or maintenance.

 

Advantages of CWDM Over DWDM

Some people may have doubt that DWDM is
also a good solution for expanding network capacity. Of course it does.
However, comparing these two technologies—CWDM and DWDM, CWDM has more
advantages. The main advantage of CWDM is the cost of the optics which is
typically one third of the cost of the equivalent DWDM optics. CWDM devices are
popular with low cost, less power, less precision and lower maintenance
requirements. In terms of economic scale, not so many requirements need to
exceed 80 wavelengths, which means that CWDM is easier to be accepted by many
common customers.

 

Summary

CWDM Mux/Demux is a good solution for
expanding network performance while keeping the cost low since you can send the
same amount signals with fewer fibers. fiber-mart.COM offers a complete
portfolio of CWDM Mux/Demux over dual fiber or signal fiber with package types
of plastic ABS module cassette, 19” 1RU rack and LGX metal box. Welcome to enquire
for more detailed information.