Passively phase-locked Er:fiber source of single-cycle pulses in the near infrared with electro-optic timing modulation for field-resolved electron control

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A single-cycle light source in the near infrared is demonstrated enabling sensitive applications of ultrafast optical field control of electronic transport. The compact Er:fiber system generates passively phase-locked pulses with broadband spectra covering 150 THz to 350 THz at a duration of 4.2 fs and 40 MHz repetition rate. A second output arm is equipped with an electro-optic modulator that switches the arrival time of the pulses by 700 ps at arbitrary frequencies up to 20 MHz, enabling timing modulation of the pump pulse without changing the average intensity. As a benchmark demonstration, we investigate the carrier relaxation dynamics in low-temperature-grown InGaAs using quantum interference currents.

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ISO 690SCHÖNFELD, Christoph, Philipp SULZER, Daniele BRIDA, Alfred LEITENSTORFER, Takayuki KURIHARA, 2022. Passively phase-locked Er:fiber source of single-cycle pulses in the near infrared with electro-optic timing modulation for field-resolved electron control. In: Optics Letters. Optica Publishing Group. 2022, 47(14), pp. 3552-3555. ISSN 0146-9592. eISSN 1539-4794. Available under: doi: 10.1364/OL.461076
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@article{Schonfeld2022-07-15Passi-57823,
  year={2022},
  doi={10.1364/OL.461076},
  title={Passively phase-locked Er:fiber source of single-cycle pulses in the near infrared with electro-optic timing modulation for field-resolved electron control},
  number={14},
  volume={47},
  issn={0146-9592},
  journal={Optics Letters},
  pages={3552--3555},
  author={Schönfeld, Christoph and Sulzer, Philipp and Brida, Daniele and Leitenstorfer, Alfred and Kurihara, Takayuki}
}
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