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This research aims to develop a compact laser engine for frequency-modulated continuous-wave photonic systems with enhanced performance.

High‐Performance Laser Engine Enabling Synchronous Chirp Linearization for Wavelength‐Resolved FMCW Photonic Systems

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This research aims to develop a compact laser engine for frequency-modulated continuous-wave photonic systems with enhanced performance.
Proposed an integrable FMCW laser engine with on-chip synchronous linear calibration.
Utilized a multi-channel interferometric cavity for wide mode-hop-free tuning and frequency monitoring.
Implemented frequency tracking and chirp linearization for multi-wavelength operation.
Achieved a mode-hop-free tuning range of 105 nm and a dynamic sweep bandwidth of approximately 8 GHz.
Maintained stable linearity across successive wavelength sweeps with the new laser architecture.
Successfully demonstrated the laser in an optical phased array-based wavelength-resolved FMCW photonic system for 3D sensing.

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Randomized trial demonstrates improved tuning and linearization in FMCW systems, suggesting enhanced LiDAR capabilities.

A 2026 study studied this question.

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