Title :
Very low threshold long wavelength surface emitting lasers
Author :
Choa, F.S. ; Shih, M.H. ; Tanbun-Ek, T. ; Logan, R.A. ; Tsang, W.T. ; Sergent, A.M.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., Baltimore, MD, USA
Abstract :
Very low threshold (~4 mA), grating coupled, surface-emitting lasers around 1.55 μm wavelength region are reported. Emitting far field profiles in different directions have been measured for either single- or multi- mode laser cases. Future directions to improve FWHM of the laser emitting angles are also discussed
Keywords :
diffraction gratings; laser transitions; semiconductor lasers; surface emitting lasers; 1.55 micron; 4 mA; SEL; emitting far field profiles; grating coupling; laser emitting angles; long wavelength operation; multi-mode laser; single-mode laser; surface emitting lasers; very low threshold operation; Distributed feedback devices; Gratings; Laser feedback; Laser modes; Laser theory; Optical surface waves; Power generation; Surface emitting lasers; Surface waves; Vertical cavity surface emitting lasers;
Conference_Titel :
Electronic Components and Technology Conference, 1994. Proceedings., 44th
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-0914-6
DOI :
10.1109/ECTC.1994.367606
