Title :
Influence of the laser locking characteristics on overtone rejection and signal to noise ratio in optically generated microwaves
Author :
Campuzano, Gabriel ; Gallion, Philippe
Author_Institution :
Ecole Nat. Superieure des Telecommun., Paris, France
Abstract :
In this paper, influence of the laser locking characteristics on overtone rejection and signal to noise ratio in optically generated microwaves are experimentally implemented using DFB semiconductor lasers and novel results concerning high-performance issues are reported. Experimental observations show that the spectral purity is inherently dependent on the frequency detuning and on the relative power of the chosen modulation sideband with respect to the adjacent sidebands. The rejection rate and locking stability also deeply depend on the injection rate.
Keywords :
distributed feedback lasers; laser mode locking; laser stability; microwave generation; microwave photonics; optical modulation; optical tuning; radiofrequency spectra; semiconductor lasers; DFB semiconductor laser; frequency detuning; injection rate; laser locking; locking stability; modulation sideband; optically generated microwaves; overtone rejection; rejection rate; signal-noise ratio; spectral purity; Character generation; High power microwave generation; Laser noise; Masers; Microwave generation; Optical modulation; Optical noise; Semiconductor lasers; Signal generators; Signal to noise ratio;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313583
