Analysis of optical coupling behavior in two-dimensional implant-defined coherently coupled vertical-cavity surface-emitting laser arrays
Artikel i vetenskaplig tidskrift, 2018

Optical coupling behavior and associated effects in two-dimensional implant-defined coherently coupled vertical-cavity surface-emitting laser (VCSEL) arrays are studied via both experiments and theoretical calculations. Experiments show that optical coupling between array elements can enhance the array’s output power. Additionally, optical coupling via leaky optical fields can provide extra optical gain for the array elements, which can then reduce the thresholds of these elements. Elements can even be pumped without current injection to emit light by receiving a strong leaky optical field from other array elements. Optical coupling can also cause unusual phenomena: the central elements in large-area coherently coupled VCSEL arrays that lase prior to the outer elements when the arrays are biased, or the average injection current required for each element to lase, which is much lower than the threshold for a single VCSEL. Theoretical calculations are performed to explain the experimental results.

Surface emitting lasers

Lasers

Isomers

Laser pulses

Författare

G. Z. Pan

Beijing University of Technology

Y. Xie

Beijing University of Technology

Chen Xu

Beijing University of Technology

Y. B. Dong

Beijing University of Technology

J. U.N. Deng

Beijing University of Technology

Hongda Chen

Chinese Academy of Sciences

Jie Sun

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Beijing University of Technology

Photonics Research

2327-9125 (ISSN)

Vol. 6 11 1048-1055

Ämneskategorier

Atom- och molekylfysik och optik

Annan fysik

Den kondenserade materiens fysik

DOI

10.1364/PRJ.6.001048

Mer information

Senast uppdaterat

2019-03-18