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Polarization bistability characteristics of optical feedback vertical-cavity surface-emitting lasers after taking into account multiple trip external optical feedbacks

XIAO-JUAN YAN1, GUANG-QIONG XIA1, JIA-GUI WU1, ZHENG-MAO WU1,*

Affiliation

  1. School of Physics, Southwest University, Chongqing 400715, China

Abstract

Single trip feedback approximation is usually adopted in modelling the optical feedback vertical-cavity surface-emitting lasers (VCSELs) in order to simplify the theoretical treatment. In this paper, after considering the common case of existence of the multiple trip optical feedbacks, the polarization bistability (PB) properties in VCSELs is investigated numerically. The results show that the polarization bistability performances, such as the width of the bistablity loop, the swith-on and swith-off current, obtained by multiple trip, are different from those obtained by single trip. With the increase of the strength of external optical feedback, the difference is further increased..

Keywords

Vertical-cavity surface-emitting lasers (VCSELs), Polarization bistability, Multiple trip external optical feedback.

Submitted at: July 22, 2008
Accepted at: Oct. 7, 2008

Citation

XIAO-JUAN YAN, GUANG-QIONG XIA, JIA-GUI WU, ZHENG-MAO WU, Polarization bistability characteristics of optical feedback vertical-cavity surface-emitting lasers after taking into account multiple trip external optical feedbacks, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 10, pp. 2502-2506 (2008)