Title :
Square Root Module to Combat Dispersion-Induced Nonlinear Distortion in Radio-Over-Fiber Systems
Author :
Prat, Josep ; Santos, María C. ; Omella, Mireia
Author_Institution :
Opt. Commun. Group, Univ. Politecnica de Catalunya, Barcelona
Abstract :
Reduced dispersion-induced harmonics levels are reported for analogue radio-over-fiber systems by using a linearized receiver incorporating a memoryless electronic circuit with square root (SQRT)-like transfer function, and performing amplitude modulation (AM) at the transmitter. A practical implementation demonstrates the effectiveness of the AM-SQRT approach in linearizing the optical transmission system with respect to the conventional intensity modulation and direct detection system
Keywords :
amplitude modulation; microwave photonics; modules; optical fibre dispersion; optical receivers; optical transmitters; radio-over-fibre; transfer functions; amplitude modulation; direct detection system; dispersion-induced nonlinear distortion; intensity modulation; radio-over-fiber systems; square root-like transfer function; Amplitude modulation; Electronic circuits; Nonlinear distortion; Nonlinear optics; Optical distortion; Optical modulation; Optical receivers; Optical transmitters; Radio transmitters; Transfer functions; Adaptive equalization; dispersion equalization; optical fiber communications; radio-over-fiber (RoF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.881662
