- Fiber optics deals with the learning of propagation of light through the transparent dielectric waveguide. Fiber optic system currently used extensively as the transmission line between terrestrial hardwired systems.
- The fiber optics are used for transmission of data from point to point location, so its very accurate result in fiber optic system, Now a day there are many advance technology upgraded in fiber optic system.
- Optical fiber are very helpful for daily need of fiber optic communication compared to the traditional system because of the long-haul transmission system, as well as low loss transmission medium
- This article is very helpful for how a new technology upgraded in the year of 1975 to 2015. So now let us talk about the evolution of fiber optic system.
The first generation of lightwave systems uses HaAs semiconductor laser and the operating region was near 0.8 micrometers. Other specifications of this generation are as under :
- Bitrate : 45 Mb/s
- Repeater spacing: 10 km
- Bit rate : 100 Mb/s to 1.7 Gb/s
- Repeater spacing : 50 km
- Operating wavelength : 1.3 micro meter
- Semiconductor : In GaAsP
- Bit rate : 10 Gb/s
- Repeater spacing : 100 km
- Operating wavelength : 1.55 micro meter
The fourth generation uses WDM techniques.
- Bit rate : 100 Tb/s
- Repeater spacing : >10000 km
- Operating wavelength: 1.45 to 2.62 micrometer
The fifth generation uses raman amplification techniques and optical solitiors.
- Bitrate : 40-60 Gb/s
- Repeater spacing: 24000 km – 35000 km
- Operating wavelength: 1.53 to 1.57 micrometer