Analysis of the replicating characteristics of optical pulse active replicator

摘要

The all optical pulses replicating technique to measure single-shot or low repetition optical pulses and pulses with poor stability based on optical pulse active replicator (OPAR) is present. The OPAR can provide an identical pulse sequence for equivalent-time sampling method. The analysis show replication error of OPAR caused by nonlinear gain and amplified spontaneous emission (ASE) of semiconductor optical amplifier (SOA) could be reduced by pumping light injecting. Bias current of SOA should choose an intermediate value to confine nonlinear gain and ASE simultaneously. This result is validated by experiment. The stability of OPAR and baseline shift in output pulses sequence are discussed too. The results show that OPAR is suitable to generate low-distortion pulses sequence for equivalent-time sampling with high replicating stability.