Single-shot photonic time-stretch digitizer using a dissipative soliton-based passively mode-locked fiber laser.

摘要: We demonstrate a single-shot photonic time-stretch digitizer using dissipative soliton-based passively mode-locked fiber laser. The theoretical analysis and simulation results indicate that the optical source with flat spectrum relieves envelope-induced signal distortion, its high energy spectral density helps to improve signal-to-noise ratio, both of which are favorable for simplifying front-end architecture digitizer. By employing homemade erbium-doped laser in digitizer, an effective number bits 4.11 under sampling rate 100 GS/s is experimentally obtained without amplification link pulse envelope removing process.