Title :
Investigation of dynamic polarization stability of 850-nm GaAs-based vertical-cavity surface-emitting lasers grown on [311]B and [100] substrates
Author :
Uenohara, Hiroyuki ; Tateno, Kouta ; Kagawa, Toshiaki ; Ohiso, Yoshitaka ; Tsuda, Hiroyuki ; Kurokawa, Takashi ; Amano, Chikara
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
fDate :
4/1/1999 12:00:00 AM
Abstract :
The polarization stability of 850-nm GaAs-based vertical-cavity surface-emitting lasers (VCSELs) under dynamic operation was investigated by comparing the characteristics of VCSELs grown on [311]B and [100] GaAs substrates. Significantly larger suppression ratios of the two orthogonal polarization modes was obtained for VCSELs on [311]B substrates than those on [100] substrates under zero-bias modulation. Time-dependent orthogonal polarization suppression ratio measurements also showed that the polarization direction was more stable in the VCSEL on [311]B substrates than that on [100] substrates. Error-free transmission was realized from VCSELs on [311]B substrates with and without a polarizer in both back-to-back and 100-m multimode fiber transmission.
Keywords :
III-V semiconductors; aluminium compounds; distributed Bragg reflector lasers; gallium arsenide; laser cavity resonators; laser stability; laser transitions; light polarisation; optical transmitters; quantum well lasers; surface emitting lasers; (100) substrates; (311)B substrates; 100 m; 850 nm; GaAs-AlGaAs; GaAs-AlGaAs MQW DBR VCSEL lasers; GaAs-based vertical-cavity surface-emitting lasers; VCSEL; dynamic operation; dynamic polarization stability; error-free transmission; larger suppression ratios; multimode fiber transmission; orthogonal polarization modes; polarization direction; polarization stability; polarizer; time-dependent orthogonal polarization suppression ratio measurements; zero-bias modulation; Distributed Bragg reflectors; Geometrical optics; High speed optical techniques; Laser stability; Optical fiber polarization; Optical interconnections; Optical polarization; Substrates; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
