Power and Spectra Polarization of Large-Aperture
Rectangular-Shaped Vertical-Cavity Top-Emitting Lasers1
W. Wanga, b, Y. Q. Ninga, *, J. L. Zhanga, L. Qina, Y. G. Zenga, Y. Liua, C. Z. Tonga, and L. J. Wanga
a Key State Laboratory of Luminescence and Their Applications, Changchun Institute of Optics, Fine Mechanics and Physics,
Chinese Academy of Sciences, Changchun, 130033 China
b Graduate School of Chinese Academy of Sciences, Beijing, 100039 China
*e-mail: ningyq@ciomp.ac.cn
Received October 14, 2011; in final form, October 15, 2011; published online February 6, 2012
Abstract—980-nm large-aperture top-emitting vertical-cavity surface-emitting lasers (VCSELs) were investi-
gated through introducing the rectangular post. Both H-polarization (horizontal) and V-polarization (vertical)
coexisted in the rectangular-shaped large-aperture VCSELs. Under the entire range of operation current, H-
polarization dominated over V-polarization which was parallel to the shorter side of the rectangular output aper-
ture. It was found that spectrum blue-shift of H-polarization light occurred with respect to V
polarization light
at three different aspect ratios, and this can be explained by the dependence of longitudinal propagation constant
on the aspect length. The rectangular post structure was found to be effective for polarization stabilization in
broad-area VCSELs without serious degradation of light output characteristics.
DOI: 10.1134/S1054660X1203022X
Pleiades Publishing home page | journal home page | top
If you have any problems with this server, contact webmaster.