Wide band fiber systems and long transmission applications based on optimum optical fiber amplifiers lengths

Article clarified the optimum fiber amplifiers length for wide band fiber system applications. Optical suppressed carrier transceiver with various fiber amplifier lengths in long haul applications is simulated by using optisystem simulation program version 13. Max. Q coefficient and min. BER can be tested for various fiber amplifiers lengths from 5 to 30 m. The optimum performance efficiency is achieved with 5 m amplifier length which the max. Q coefficient is 62.5 and bits error rate is tended to zero. Peak power amplitude level, noise signal power level, noise signal amplitude level (NSAL) and peak signal amplitude level after channel with a 45 km length for optimum fiber optic amplifier length of 5 m are measured.

Enhanced 1.5 μm emission from Yb3+/Er3+ codoped tungsten tellurite glasses for broadband near-infrared optical fiber amplifiers and tunable fiber lasers

Strong 1.5 μm emission with full width at half maximum of 64 nm is achieved in 3 mol% Yb2O3 and 1 mol% Er2O3 codoped tungsten tellurite glass. The present glass shows large gain bandwidth (6.78 × 10−26 cm3) and figure of merit (4.06 × 10−23 cm2 s).

Comparison between Optical Fiber Amplifiers of Information Signals

This research is devoted for reviewing a differe nt types of fiber optical amplifiers for construction the optical system of transmission such erbium-doped fiber amplifi er (EDFA), Thulium-doped fiber amplifier (TDFA), Compelle d Combinational Dispersion (CCD), their principles of wo,r k advantages, and disadvantages, with purpose of increasing eth pass band spectrum and to decrease some disadvantages su ch attenuation and dispersion. also considered a suggested metho d of simultaneous stokes and anti-stokes strengthening of compelled combinational dispersion in fibers