Title :
A /spl lambda//4-shifted sampled or superstructure grating widely tunable twin-guide laser
Author :
Morthier, Geert ; Moeyersoon, Bart ; Baets, Roel
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Belgium
Abstract :
A novel widely tunable laser diode that only requires two tuning currents is proposed. The laser structure is based on the tunable twin-guide laser with a /spl lambda//4-shifted sampled or superstructure grating. Numerical simulation results are given for the tuning characteristics.
Keywords :
diffraction gratings; laser theory; laser tuning; semiconductor device models; semiconductor lasers; waveguide lasers; /spl lambda//4-shifted sampled grating widely tunable twin-guide laser; /spl lambda//4-shifted superstructure grating widely tunable twin-guide laser; laser structure; numerical simulation; tuning characteristics; tuning currents; Bragg gratings; Charge carrier density; Diode lasers; Distributed Bragg reflectors; Laser feedback; Laser modes; Laser tuning; Power generation; Semiconductor lasers; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
