Title :
Single-mode power dependence on surface relief size for mode-stabilized oxide-confined vertical-cavity surface-emitting lasers
Author :
Martinsson, H. ; Vukusic, J.A. ; Larsson, A.
Author_Institution :
Photonics Lab., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
We have studied the mode behavior of oxide-confined vertical-cavity surface-emitting lasers (VCSELs) with a surface relief for fundamental mode selection. The dependence of single-mode power on the surface relief diameter was measured and compared with numerically calculated values. VCSELs with diameters of 9 and 12 μm were equipped with surface reliefs with diameters in the range 4-10 μm. The results show that there exists an optimum relief diameter for each VCSEL size. A maximum single-mode power of 2.2 mW was achieved for a 9-μm-diameter VCSEL with a 4-μm-diameter surface relief.
Keywords :
distributed Bragg reflector lasers; laser modes; semiconductor lasers; surface emitting lasers; 12 mum; 2.2 mW; 4 mum; 4 to 12 mum; 9 mum; VCSEL; VCSEL size; fundamental mode selection; maximum single-mode power; mode-stabilized oxide-confined vertical-cavity surface-emitting lasers; numerically calculated values; optimum relief diameter; single-mode power dependence; surface relief; surface relief diameter; surface relief size; Apertures; Etching; Laser modes; Mirrors; Optical interconnections; Oxidation; Photonics; Semiconductor lasers; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
