Title :
Polarization Switching and Hysteresis of VCSELs With Time-Varying Optical Injection
Author :
Zhang, Wei Li ; Pan, Wei ; Luo, Bin ; Wang, Meng Yao ; Zou, Xi Hua
Author_Institution :
Sch. of Inf. Sci. & Technol., Southwest Jiaotong Univ., Chengdu
Abstract :
We study the influence of time-varying orthogonal optical injection on polarization switching (PS) of vertical-cavity surface-emitting lasers (VCSELs). Three cases are considered: scanning injection strength, and scanning frequency detuning in two different reference ranges. In all the three cases, fast sweep rates make PSs happen at higher (lower) values for upward (downward) scans, and thus enlarge the hysteresis region. Furthermore, types of PS and the emission states of the laser can be controlled, if the scanning parameter and scanning range are chosen properly. Statistical analysis indicates PS for the third case is not so stable as that for the first two cases.
Keywords :
laser cavity resonators; laser tuning; statistical analysis; surface emitting lasers; VCSEL; laser emission states; polarization switching; scanning frequency detuning; scanning injection strength; statistical analysis; time-varying orthogonal optical injection; vertical-cavity surface-emitting lasers; Frequency; Hysteresis; Optical bistability; Optical feedback; Optical mixing; Optical polarization; Optical pumping; Semiconductor lasers; Surface emitting lasers; Vertical cavity surface emitting lasers; Bistable; optical injection; polarization switching (PS); semiconductor lasers; vertical cavity surface emitting lasers (VCSELs);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2008.922896
