Optical network application functionality
analysis of glass fibre technology - Auto diagnostic tools
Fiber optical networks in a variety of
program determines the overall performance requirements of optical fibre
technology. For so few-distance optical transmission networks, the true secret
consideration works for laser transmission and mode of an wider bandwidth,
multimode fiber, to back up greater information transmission capacity from the
serial signal.
For long-distance submarine cable transmission
systems, so as to reduce the variety of pricey optical amplifiers should
concentrate on considering area having a large mode field diameter and improve
the negative dispersion optical fibre transmission distance.ce.
And reflection on land-based long-distance
transmission systems may be the chance to transfer the main objective of more
wavelengths, and each wavelength as much as possible to high rate of
transmission, while also addressing the situation of fiber dispersion, get the
job done fiber dispersion value with Changes towards minimum wavelength.
For LAN and ring feeder, since the
transmission distance is pretty short, given the main focus on cost as opposed
to optical network transmission cost. Means to solve the glass fiber
transmission up / later on / drop multiplexing problem, but also need to be
inserted / min to reduce the expense of wavelength.
Fiber Transmission Optical fibre technology
in the transmission, first by having a variety of optical network to achieve.
Until now, the building of various glass fiber transmission topology is simply
divided into three categories: star, bus and ring-shaped. Further from your
network's hierarchical model form for that network all the way through which
enables it to be split into several layers, each layer might be divided into
several subnets. That's, through the various switching centers and transmission
systems including things like network and network can certainly still be put
into a number of smaller subnetworks, so that the entire digital network
communications services effectively, all-digital integrated services digital
network ( ISDN) would be the overall goal of communication networks. The
popularity of ADSL and CATV, metro access system capacity increases, the trunk
backbone network expansion would need to carry out various kinds of fiber optic
transmission of responsibility.
Dispersion compensation fiber (DCF) Fiber
dispersion can pulse broadening, which triggered error. This is the
communication network must avoid an issue, and also long-distance transmission
systems should address an interest. Generally, the fiber dispersion, including
material dispersion and waveguide dispersion two parts, materials, manufacture
of glass fiber dispersion depends on parents material and doping agent silica
dispersion, and waveguide dispersion generally is a type of effective index of
refraction with wavelength The change in trend. Dispersion compensation fiber
is needed from the transmission system in order to resolve a dispersion
management technique.
Non-dispersion shifted fiber (USF) towards
the material dispersion is principally with small waveguide dispersion merger,
produce zero dispersion at 1310nm nearby. The dispersion shifted fiber (DSF)
and non-zero dispersion shifted fiber (NZDSF) is the utilization of technical
means, the deliberate distribution of the fiber's index of refraction is
designed to generate material dispersion weighed against the waveguide
dispersion, and the material dispersion and waveguide dispersion sum after, DSF
zero-dispersion wavelength of 1550nm to move around. 1550nm wavelength is by
far the most trusted communication network in the wavelength. Inside submarine
cable transmission system, it's a positive from the 2 kinds of fiber dispersion
and negative dispersion to form a combined dispersion managed transmission
system. Since the transmission in the growth and boost the capacity of a giant
number of WDM and DWDM systems used. Through these systems, dispersion
compensation has to be developed that can be in the C-band and L band work, and
three packs of double-clad refractive index distribution of DCF. Can be carried
out in C-band dispersion compensation SMF dispersion value 6065Ps/nm/km, its
effective area (Apff) to 2328m2,
decrease in 0.2250.265dB/km.
In the quartz fiber core layer can be done
of rare earth doped optical zoom, and zoom as erbium-doped fiber (EDF),
thulium-doped fiber amplification (TOF) and the like. Larger quartz optical
fiber and traditional integration of proper performance, and also includes a
high output, wide bandwidth, low noise, and many other advantages.
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