Title :
Large extinction ratio and low threshold dual intra-cavity contacted polarisation switching VCSELs
Author :
Zheng, Yu ; Lin, Chia-Hung ; Coldren, Larry A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Santa Barbara, CA, USA
Abstract :
A novel dual intra-cavity contacted VCSEL capable of switching between two orthogonal polarisation states is presented. Polarisation switching is controlled by changing the current injection direction. A record-low threshold current of 0.19 mA and an extinction ratio >21 dB from fit are achieved.
Keywords :
laser cavity resonators; light polarisation; optical switches; surface emitting lasers; VCSEL; current 0.19 mA; current injection direction; dual intracavity contacted poarlisation switching; orthogonal polarisation state; polarisation switching;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2802
