摘要
基于描述主、副垂直腔表面发射激光器(M-VCSEL,S-VCSEL)动态特性的速率方程,研究了M-VCSEL在脉冲电流调制下,输出光脉冲的偏振特性,以及S-VCSEL在M-VCSEL输出光脉冲的注入下,其偏振开关特性.研究结果表明:M-VCSEL在周期性脉冲电流的作用下,将产生周期性光脉冲输出;S-VCSEL在该光脉冲的注入下,输出光将在两个互相垂直的方向之间发生周期性转化,且变化周期与M-VCSEL所受到的调制脉冲电流周期相同;通过改变M-VCSEL驱动脉冲电流的调制幅度,可控制S-VCSEL输出的垂直偏振抑制比.
Based on the rate equations describing the dynamic characteristics of the master and slave vertical cavity surface emitting laser （M-VCSEL,S-VCSEL）,under the modulation of pulsed bias current,the polarization characteristics of M-VCSEL output and the polarization switching performance of S-VCSEL subjected to optical pulse output from the M-VCSEL have been investigated. The results show that periodical pulses can be obtained by adding a periodical pulsed current on the M-VCSEL. Under injection of the optical pulsed from M-VCSEL,the output power of S-VCSEL will switch periodically between two orthogonal polarizations,and the period is equal to the period of the modulated current in M-VCSEL. Through changing the modulated amplitude of current in M-VCSEL,the orthogonal polarization suppression ratio （OPSR） can be controlled easily.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第3期1480-1483,共4页
Acta Physica Sinica
基金
重庆市自然科学基金(批准号:CSTC-2007BB2333)
西南大学高新技术培育基金资助的课题~~
