High-Speed Electro-Optic Modulator Design & Simulation
Interactive design and simulation of silicon Mach-Zehnder modulators for high-speed optical communication. Optimize phase shifter design, analyze Vπ characteristics, and evaluate linearity performance for 25-50 Gbps operation.
Adjust key design parameters to optimize modulator performance for your specific application requirements.
Optimized phase shifter geometry and doping profile for minimal drive voltage requirements, enabling low-power operation and improved linearity.
Careful design of the phase shifter to minimize harmonic distortion and maintain excellent linearity across the full operating range.
Optimized for 25-50 Gbps operation with excellent frequency response and minimal group delay variation.
Designed for standard CMOS fabrication processes with excellent yield and reliability for high-volume production.
The Mach-Zehnder modulator performance is governed by the following key equations:
The phase shift in the modulator arms is given by:
$$\Delta\phi = \frac{2\pi}{\lambda} \Delta n_{eff} L$$
Where Δneff is the effective index change due to the applied voltage.
The half-wave voltage is calculated as:
$$V_\pi = \frac{\lambda}{2n_{eff}^3 r_{eff} L}$$
Where reff is the effective electro-optic coefficient and L is the phase shifter length.
The extinction ratio is given by:
$$ER = 10\log_{10}\left(\frac{P_{max}}{P_{min}}\right)$$