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  • Long-term hybrid stabilization of the carrier-envelope phase OPTICS EXPRESS Hirschman, J., Lemons, R., Chansky, E., Steinmeyer, G., Carbajo, S. 2020; 28 (23): 34093–103


    Controlling the carrier envelope phase (CEP) in mode-locked lasers over practically long timescales is crucial for real-world applications in ultrafast optics and precision metrology. We present a hybrid solution that combines a feed-forward technique to stabilize the phase offset in fast timescales and a feedback technique that addresses slowly varying sources of interference and locking bandwidth limitations associated with gain media with long upper-state lifetimes. We experimentally realize the hybrid stabilization system in an Er:Yb:glass mode-locked laser and demonstrate 75 hours of stabilization with integrated phase noise of 14 mrad (1 Hz to 3 MHz), corresponding to around 11 as of carrier to envelope jitter. Additionally, we examine the impact of environmental factors, such as humidity and pressure, on the long-term stability and performance of the system.

    View details for DOI 10.1364/OE.400321

    View details for Web of Science ID 000589869600027

    View details for PubMedID 33182886