In this paper we propose a new concept for LiDAR Photonic integrated circuits that is based on tilted grating coupler that doesn’t require any phase modulators for beam steering. Our simulations for SOI waveguide structure show that the concept of tilted grating coupler is feasible with a FOV of 100◦ by 35◦
We propose a model that can simulate the performance of a photonic-integrated FMCW Doppler LiDAR system with various target and system settings. The well-rounded system model can predict the measured target speed and velocity, system axial resolution, beat signal SNR, frequency modulation nonlinearity induced system error, with a new concept for swept-source laser frequency stabilization. Two sets of autonomous driving scenarios are simulated. Simulations confirm that our model yield system performance consistent with the theoretical calculations.
KEYWORDS: Solitons, Raman scattering, Wave propagation, Multiplexing, Systems modeling, Nonlinear optics, Optical solitons, Fiber optic communications, Data transmission, Signal to noise ratio
We study the interaction properties of two-channel wavelength-division multiplexed strongly dispersion managed communication systems. By means of a variational approach to the Generalized Nonlinear Schrödinger Equation we obtain an ordinary differential equations model for the main parameters of the pulses including third-order dispersion, Raman scattering and self-steepening. We study the residual frequency shift for each channel after the collision between sets of two pulses as a function of the ratio of dissimilar peak powers in a broad range of dispersion difference values, concluding that the transmission characteristics improve by using specific values of unequal energies and considering higher-order correction terms.
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