OFC Technology

OFC Technology
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  Communication Basics TRANSMITTER RECEIVER MEDIUM Input to the transmitter is the information signal. Transmitter modifies this signal into a suitable form so as to send along the medium to the distant end. Receiver receives the signal from the medium and converts it to suitable form for further application. Medium can be of different types like copper cable, radio wave or Optical Fiber Cable. Fibre Optics 1  Communication Media Guided Unguided e.g . Atmosphere (Wire Less) e.g.Twisted Pair Wire, Co-axial Cable (Copper), Fiber Optic Cable. Communication Media Fibre Optics 2  Optical Fiber Link Light is guided through fiber. TRANSMITTER DRIVER LASER SOURCE Converts elec. signal to light signal. Driver modifies the information into a suitable form for conversion into light Source is LED or laser diode which does the actual conversion. FIBER LINK MEDIUM FOR CARRYING LIGHT RECIEVER DETECTOR Detector accepts light and converts it back to elec. signal. Fibre Optics 3  ã Light  –  Ultraviolet (UV)  –  Visible  –  Infrared (IR) ã Communication wavelengths  –  850, 1310, 1550 nm  –  Low-loss wavelengths UV IR Visible 850 nm 980 nm 1310 nm 1480 nm 1550 nm 1625 nm l   Wavelength:   l (nanometers) Frequency:      (tera hertz) c   =  x   l Optical Spectrum
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