As a member of the R&D team, you will design Digital Signal Processing (DSP) and Forward Error Correction (FEC) algorithms for high-speed intensity-modulation and direct-detect (IM/DD) optical communication systems in automotive applications.
You will work closely with the Analog and Mixed-Signal (AMS) and Digital IC design teams to contribute to system architecture, partition analog and digital implementations, model channels, and support IC design, verification, and characterization.
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Channel Modeling: Model optoelectronic components (e.g., laser drivers, Transimpedance Amplifiers (TIA)), photonics (e.g., VCSEL, PIN photodiodes), and optical transmission effects (e.g., chromatic dispersion (CD), effective modal bandwidth (EMB), modal noise (MN), and mode partition noise (MPN)), understanding their impact on signal distortion, both linear and non-linear, noise and jitter.
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Algorithm Development: Invent, simulate, and validate energy-efficient DSP algorithms in both floating-point and fixed-point precision. These algorithms will be used for adaptive AMS blocks calibration, adaptive channel equalization, timing recovery, symbol synchronization, FEC encoding/decoding, and signal quality assessment for both electrical and optical physical layers.
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Hardware Testing & Optimization: Measure and optimize algorithms on actual hardware, correlating models and performance with prior simulations. You will refine models and update simulation environments to ensure alignment with experimental data.
