title: Influence of polarization mode competition on chaotic unpredictability of vertical-cavity surface-emitting lasers with polarization-rotated optical feedback.
abstract: The chaotic unpredictability of vertical-cavity surface-emitting lasers (VCSELs) with polarization-rotated optical feedback is evaluated quantitatively via the normalized permutation entropy H. The effect of polarization mode competition (PMC) is explored. For weak PMC, the H for X-polarization mode, Y-polarization mode, and total output are close to each other, while for strong PMC, the H for the total output is the highest one, which indicates that the permutation entropy is an effective tool for quantifying chaotic unpredictability of VCSELs and provides valuable information for choosing the proper chaotic carrier.
authors.affiliation: Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China. jxxsy@126.com
authors.forename: Shuiying
authors.initials: S
authors.lastname: Xiang
authors.forename: Wei
authors.initials: W
authors.lastname: Pan
authors.forename: Lianshan
authors.initials: L
authors.lastname: Yan
authors.forename: Bin
authors.initials: B
authors.lastname: Luo
authors.forename: Xihua
authors.initials: X
authors.lastname: Zou
authors.forename: Ning
authors.initials: N
authors.lastname: Jiang
authors.forename: Kunhua
authors.initials: K
authors.lastname: Wen