Title :
UWB system based on Gain-Switched Laser
Author :
Kaszubowska-Anandarajah, A. ; Barry, L.P.
Author_Institution :
Sch. of Electron. Eng., Dublin City Univ.
Abstract :
Simulation results based on an UltraWideBand (UWB) system employing a gain-switched laser are presented. 156 Mb/s data stream modulates the position of short electrical pulses, which are then used to gain-switch the laser. The output optical pulses are then transmitted over fiber to a Remote Antenna Unit (RAU), where the signal is detected and undergoes spectral shaping (according to UWB requirements). The resulting Pulse Position Modulated (PPM) electrical impulses are then converted to an amplitude-modulated signal and down-converted. Bit Error Rate measurements are carried out on a back-to-back system and a transmission link (over different lengths of fiber)
Keywords :
error statistics; laser beams; microwave photonics; optical fibre dispersion; optical modulation; optical transmitters; radio-over-fibre; ultra wideband communication; 156 Mbit/s; UWB system; amplitude-modulated signal; bit error rate measurement; data stream; electrical pulses; fiber dispersion; gain-switched laser; laser diode; optical pulse transmission; pulse position modulated electrical impulses; remote antenna unit; signal detection; spectral shaping; transmission link; ultrawideband system; wireless system; Amplitude modulation; Antenna measurements; Bit error rate; Fiber lasers; Optical pulses; Pulse modulation; Signal detection; Transmitting antennas; Ultra wideband antennas; Ultra wideband technology; Gain-switching; UWB; fiber dispersion; laser diode; optical fiber; pulse position modulation; wireless systems;
Conference_Titel :
Microwave Photonics, 2006. MWP '06. International Topical Meeting on
Conference_Location :
Grenoble
Print_ISBN :
1-4244-0203-4
Electronic_ISBN :
1-4244-0204-2
DOI :
10.1109/MWP.2006.346502
