Automatic CEP locking and optimization for a Ti:Sa femtosecond oscillator

Vincent Loriot (1)

1 iLM - DYNAMO - iLM - Structure et dynamique multi-échelle des édifices moléculaires

This paper presents a software solution to automatically lock and optimize the carrier envelope phase (CEP) of a femtosecond titanium:sapphire (Ti:Sa) based oscillator following the standard optical arrangement. The solution also mitigates the usual limited-range actuator problem of the slow feedback loop. The principle is to control the relevant stabilization parameters with a single computer to mimic the manual action. After calibration of the piezoelectric actuator, four preliminary measurements are required to locate the CEP-locking point. Then, the algorithm optimizes the CEP performance. Only a few seconds are required to automatically lock and optimize the CEP.

Domaines: Sciences de l'ingénieur [physics]; Chimie; Physique [physics]

Vincent Loriot. Automatic CEP locking and optimization for a Ti:Sa femtosecond oscillator. OSA Continuum, 2020, 3 (11), pp.2976-2981. ⟨10.1364/OSAC.402964⟩. ⟨hal-03093664⟩