•Only economical when the bandwidth is fully utilised
•High cost of installation
•A lot of hardware at the moment is not compatible with fibre optic cables, they need to be adapted in order to make use of them
Fiber optic is faster but delicate. needs to be handled carefully during installation and maintenance
OCDMA: Its nothing but Optical code division multiple access or Orthogonal code divsion multiple access..
Communication in which pulses light travels with its original speed i.e. 3*10^8 m/sec from one place to another with the help of optical fiber,and delay in speed occurs due to reflection,refraction,scattering ,dispersion,macrobending,macrobending and intermodal-dispersion.For any queries contact me: Mudassir Azammudassir.azam537@gmail.com
throughprotocol: modbus,profibus,tcp/ip.................commnucation medium : leased lines,Ethernet,Optical fiber communication,VSAT communication.
One of the advantages of optical fiber is that it is NOT susceptible to cross-talk.
The optical fiber can be used both as unidirectional and bidirectional. The main application of optical fiber is in long-distance links, so there exists no need to employ them as unidirectional. For each direction different wavelengths are used to modulat the signals. At the same time many bidirectional signals can travel through the same optical fiber.
what is fiber optics what is fiber optics
Bandwidth of an optical fiber determines the data rate.
The electrical bandwidth refers to the frequency range that the electronic components in the communication system can handle, while optical bandwidth refers to the frequency range that the optical fiber can transmit. The relationship between the two bandwidths is important in ensuring that the data transmission is efficient and reliable. Matching the electrical and optical bandwidths helps to avoid signal degradation and distortion in the communication system.
A: Mostly for mullti channels communication
optical fiber
To contact with the remote persons
WDM wavelength division multiplexing
Gamma rays.
qsd
OCDMA: Its nothing but Optical code division multiple access or Orthogonal code divsion multiple access..
how to design optical fiber link???????? . which coditions we have to keep in our mind in designing fiber network?????.in designing purpose which types of sours we will use & why???????????????????????
When an optical signal of a given wavelength travels in the fiber it looses power. The amount of loss of power per Km length of fiber is called its attenuation. A=10*LOG10(POUT/PIN) dB/Km Where POuT is optical power after 1 Km PIN is th epower launched in the Fiber.