Title :
Multiple RF carrier distribution in a hybrid radio/fiber system employing a self-pulsating laser diode transmitter
Author :
Kaszubowska, A. ; Barry, L.P. ; Anandarajah, P.
Author_Institution :
Sch. of Electron. Eng., Dublin City Univ., Ireland
Abstract :
A self-pulsating laser diode is used to generate a multicarrier microwave optical signal for use in a hybrid radio/fiber system. The self-pulsation frequency of the laser is controlled by external light injection, and can be varied between 14-24 GHz. The hybrid radio/fiber system, employing the self-pulsation laser, is used to distribute two 155-Mb/s data signals on two radio frequency (RF) carriers (at 18.5 and 18.9 GHz). Experimental results show the overall system performance for both RF channels, and demonstrate that the performance is improved by around 17 dB compared with the case when the laser is used without external injection, and thus, does not self-pulsate.
Keywords :
microwave photonics; optical fibre networks; optical pulse generation; optical transmitters; semiconductor lasers; telecommunication channels; 14 to 24 GHz; 155 Mbit/s; 18.5 GHz; 18.9 GHz; RF channels; data signals; external light injection; hybrid radio/fiber system; multicarrier microwave optical signal generation; multiple RF carrier distribution; overall system performance; radio frequency carriers; self-pulsating laser diode transmitter; self-pulsation frequency; Diode lasers; Fiber lasers; Hybrid power systems; Lighting control; Masers; Microwave generation; Optical control; RF signals; Radio frequency; Signal generators;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.803318
