Title :
Analysis and design criteria of three-section DBR tunable lasers
Author :
Caponio, Nunzio P. ; Goano, Michele ; Maio, Ivan ; Meliga, Marina ; Bava, Gian P. ; Destefanis, Giovanni ; Montrosset, Ivo
Author_Institution :
CSELT, Torino, Italy
fDate :
8/1/1990 12:00:00 AM
Abstract :
Three-section distributed Bragg reflector (DBR) tunable lasers emitting in the 1.55 μm region are studied through a theoretical model which takes into account thermal effects and exploits an accurate calculation of the optical parameters. Static modal competition is discussed for transverse and longitudinal modes in operation at and above threshold. The static tuning characteristics are presented; a saturation of the wavelength shift is found for control current densities of ≈20 kA-cm-2 due to Auger recombination processes and heating effects. The dependence of the tuning ranges on the section lengths, waveguide thickness results, and some design criteria are derived
Keywords :
distributed Bragg reflector lasers; laser tuning; 1.55 micron; Auger recombination processes; DBR tunable lasers; control current densities; design; distributed Bragg reflector; heating effects; longitudinal modes; optical parameters; section lengths; static modal competition; static tuning characteristics; theoretical model; thermal effects; transverse modes; waveguide thickness; wavelength shift; Distributed Bragg reflectors; Laser modes; Laser theory; Laser tuning; Optical design; Optical saturation; Optical tuning; Stimulated emission; Temperature control; Tunable circuits and devices;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
