Title :
Polarization locking of vertical-cavity surface-emitting lasers using amorphous Si subwavelength transmission gratings
Author :
Schablitsky, S.J. ; Lei Zhuang ; Shi, R.C. ; Chou, Stephen Y.
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
Summary form only given. The output light of a vertical-cavity surface-emitting laser (VCSEL) can exist in two linearly polarized modes along the (011) and the (011) crystal directions. Under normal operation, one of the modes will dominate over the other and, depending on the injection current, switching between the two modes can occur. In this paper we report the first demonstration of locking the polarization of VCSELs by putting a ultrathin amorphous silicon subwavelength transmission grating in front of the output window of a VCSEL.
Keywords :
diffraction gratings; laser cavity resonators; laser mode locking; light polarisation; optical films; optical windows; semiconductor lasers; semiconductor thin films; silicon; surface emitting lasers; (011) crystal directions; Si; amorphous Si subwavelength transmission gratings; injection current; laser mode locking; linearly polarized modes; normal operation; output light; output window; polarization locking; ultrathin amorphous silicon subwavelength transmission grating; vertical-cavity surface-emitting lasers; Amorphous materials; Anisotropic magnetoresistance; Current density; Gratings; Laser mode locking; Optical polarization; Refractive index; Steady-state; Surface emitting lasers; Vertical cavity surface emitting lasers;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
