Comment on: “Theoretical calculation of turn-on delay time of VCSEL and effect of carriers recombination” [Opt. Laser Technol. 39 (2007) 997–1001]

• Main Authors: Hisham, H.K., Abas, A.F., Mahdiraji, Ghafour Amouzad, Mahdi, M.A., Muhammad Noor, A.S.
• Format: Article
• Language: English
• Published: Elsevier 2012
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/10152/1/00012149_93594.pdf; http://eprints.um.edu.my/10152/; https://doi.org/10.1016/j.optlastec.2012.01.012

Zhang et al. [Opt.Laser Technol.39 (2007) 997–1001], through theoretical calculation,have shown that the turn-on time delay can be reduced by increasing any of the non-radiative (Anr), radiative (B), and/or Auger recombination (C) coefficients at a constant injection current over threshold current.Here,we explain that the results presented by that paper are incorrect and the turn-on time delay increases by increasing any of the carrier recombination rate coefficients.