Open AccessMulti-transverse-mode and wavelength split characteristics of vertical cavity surface emitting laser
Author(s) -
Baolu Guan,
Xin Liu,
Xiaowei Jiang,
LiangYin Chu,
Chen Xu
Publication year - 2015
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.64.164203
Subject(s) - transverse plane , optics , aperture (computer memory) , wavelength , transverse mode , materials science , ellipsoid , vertical cavity surface emitting laser , laser , physics , structural engineering , engineering , astronomy , acoustics
We study the multi-transverse mode distributions and the wavelength splittings with different designed oxide apertures of the oxide-confined VCSEL. By developing the effective index model and BPM algorithm theory, the characteristics of transverse optical field distribution are calculated with circular aperture and ellipsoid aperture, which are compared with our experimental results of multi-wavelength spectra of high-order transverse modes. The results show that the orthogonality of the different crystal orientation modes will be broken by the oxidation-induced ellipsoid aperture, and the maximum wavelength spltting of the degenerated high-order mode is 0.037 nm, which can be reduced as the diameter of aperture increases. The results in this paper will provide a useful reference for multi-transverse mode locking of oxide-confined VCSELs.