A new method for extending rate equation based VCSEL model with multimode spectral characteristic

  • Anzhong Liang
  • Chuanchuan YangEmail author
  • Cheng Zhang
  • Jingjing Song
  • Hongbin Li
Research Paper


An accurate VCSEL model is important to evaluate the performance of VCSEL-based high speed short range optical interconnect system. Current VCSEL models show no evidence of the multimode spectral characteristic, which leads to an inaccurate performance estimation of VCSEL-based high speed optical interconnect system especially with large chromatic dispersion. To overcome this problem, we propose a new method to introduce multimode spectral characteristic into current VCSEL models, which extends the spatiotemporal multimode rate equations by calculating the wavelength shift of the VCSEL transverse modes. A VCSEL-multimode fiber (MMF) based short range optical interconnect simulation system is then built using our modified VCSEL model by VPItransmissionMaker. The symbol broadening and the BER performance of 15 Gb/s NRZ signal are tested in both left-tilted differential mode delay (DMD) profile MMF (L-MMF) and right-tilted DMD profile MMF (R-MMF). Simulation results validate our proposed method and indicate that the spectral characteristic is a key component for VCSEL models.


short-range optical interconnect vertical cavity surface emitting lasers VCSEL multimode rate equations multimode spectral characteristic multimode fiber 


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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Anzhong Liang
    • 1
  • Chuanchuan Yang
    • 1
    Email author
  • Cheng Zhang
    • 1
  • Jingjing Song
    • 1
  • Hongbin Li
    • 1
  1. 1.State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer SciencePeking UniversityBeijingChina

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