Single-shot detection and direct control of carrier phase drift of midinfrared 
pulses

Manzoni, Cristian; Först, Michael; Ehrke, Henri P.; Cavalleri, Andrea

doi:10.1364/OL.35.000757

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Single-shot detection and direct control of carrier phase drift of midinfrared pulses

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http://dx.doi.org/10.1364/OL.35.000757
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Citation

Manzoni, C., Först, M., Ehrke, H. P., & Cavalleri, A. (2010). Single-shot detection and direct control of carrier phase drift of midinfrared pulses. Optics Letters, 35(5), 757-759. doi:10.1364/OL.35.000757.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0028-1A3E-6

Abstract

We introduce a scheme for single-shot detection and correction of the carrier-envelope phase (CEP) drift of femtosecond pulses at mid-IR wavelengths. Difference frequency mixing between the mid-IR field and a near-IR gate pulse generates a near-IR frequency-shifted pulse, which is then spectrally interfered with a replica of the gate pulse. The spectral interference pattern contains shot-to-shot information of the CEP of the mid-IR field, and it can be used for simultaneous correction of its slow drifts. We apply this technique to detect and compensate long-term phase drifts at 17 µm wavelength, reducing fluctuations to only 110 mrad over hours of operation.