Title :
Near-infrared vertical-cavity surface-emitting lasers with 3-MHz linewidth
Author :
De Sopra, F.M. ; Zappe, H.P. ; Moser, M. ; Hövel, R. ; Gauggel, H.-P. ; Gulden, K.
Author_Institution :
CSEM Zurich, Switzerland
Abstract :
The linewidth of electrically pumped vertical-cavity surface-emitting lasers optimized for spectroscopic applications in the near-infrared has been examined in detail. Both a high-resolution scanning Fabry-Perot interferometer and a delayed self-homodyne technique were employed for high-resolution linewidth measurement. Record narrow spectral linewidths of 3 MWz were obtained at output powers near 0.8 mW.
Keywords :
Fabry-Perot interferometers; III-V semiconductors; aluminium compounds; gallium arsenide; infrared spectroscopy; quantum well lasers; semiconductor quantum wells; spectral line breadth; surface emitting lasers; 0.8 mW; AlAs-Al/sub 0.38/Ga/sub 0.62/As; AlGaAs QW; delayed self-homodyne technique; electrically pumped vertical-cavity surface-emitting lasers; high-resolution linewidth measurement; high-resolution scanning Fabry-Perot interferometer; linewidth optimization; narrow spectral linewidths; output power; spectroscopic applications; Delay; Laser modes; Mirrors; Optical interferometry; Optical surface waves; Pump lasers; Spectroscopy; Surface emitting lasers; Vertical cavity surface emitting lasers; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
