Nonlinear circuit model of laser diodes for large-signal microwave photonic CAD
✍ Scribed by Joong-Hee Lee; Xiang-Dong Zhang; Afshin S. Daryoush; Tsang-Der Ni; Arthur Paolella
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 868 KB
- Volume
- 332
- Category
- Article
- ISSN
- 0016-0032
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✦ Synopsis
The laser diode nonlinear equivalent circuit model is developed to be integrated as part of a microwave computer-aided design (CAD) software. Single-mode rate equations are numerically solved using a harmonic balance (HB) simulator to predict performance of laser diodes. The laser diode physical parameters are first extracted by fitting these parameters to the measured I-V, L-I and frequency response curves. Analytically calculated photon densities are employed in the CAD simulation model as seed values for a faster convergence time. The laser diode CAD simulation results compare very well with the large-signal modulation measurements for a DH InGaAsP laser diode. Moreover, the simulated nonlinear behavior of a AlGaAs laser diode is compared against the published measured and SPICE predicted results to assess accuracy of this simulation package. Also, this laser diode CAD simulation achieves a,faster convergence speed than other approaches using harmonic balance simulators.