Title :
Low-temperature operation of vertical cavity surface-emitting lasers
Author :
Goobar, Edgard ; Mahon, Cathal ; Peters, Frank H. ; Peters, Matt G. ; Coldren, Larry A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
Vertical cavity surface-emitting lasers originally designed for room temperature operation are operated at 77 K. At this temperature, the gain peak and the cavity mode do not overlap. However, due to joule heating, at high biasing levels they come back into alignment and high single-mode output powers and large modulation bandwidths are observed.<>
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; laser cavity resonators; laser modes; semiconductor lasers; surface emitting lasers; 77 K; AlGaAs active layer; AlGaAs-GaAs; alignment; cavity mode; gain peak; high biasing levels; high single-mode output powers; joule heating; large modulation bandwidths; low-temperature operation; room temperature operation; vertical cavity surface-emitting lasers; Bandwidth; Gallium arsenide; Laser modes; Optical modulation; Optical surface waves; Power generation; Resonance; Surface emitting lasers; Temperature; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
