Title :
Simultaneous Dual-Wavelength Emission From Vertical External-Cavity Surface-Emitting Laser: A Numerical Modeling
Author :
Morozov, Yuri A. ; Leinonen, Tomi ; Härkönen, Antti ; Pessa, Markus
Author_Institution :
Inst. of Radio Eng. & Electron., Acad. of Sci., Saratov
Abstract :
The analysis of novel vertical external-cavity surface-emitting laser (VECSEL) designed for simultaneous dual-wavelength emission is presented. Inhomogeneous optical pumping of the nonidentical quantum wells of the active region has been studied. The novel rate equations description of our VECSEL is presented taking into account a strong time-delayed feedback. Steady-state stability conditions and the dynamics of dual-wavelength lasing have been investigated. It appears that tendency to self-pulsation due to Q-switching at high pump power is avoidable by accurate modeling and epitaxial growth of the active region of the laser
Keywords :
Q-switching; laser feedback; laser stability; optical pulse generation; optical pumping; quantum well lasers; semiconductor device models; surface emitting lasers; Q-switching; VECSEL; dual-wavelength emission; inhomogeneous optical pumping; self-pulsation; steady-state stability; time-delayed feedback; vertical external-cavity surface-emitting laser; Equations; Laser feedback; Laser modes; Numerical models; Optical design; Optical pumping; Pump lasers; Quantum well lasers; Surface emitting lasers; Vertical cavity surface emitting lasers; Laser stability; pulsed lasers; quantum-well lasers; semiconductor device modeling; semiconductor lasers; surface-emitting lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2006.881723
