- 10 fs – 20 ps pulse duration range
- 500 – 2000 nm wavelength range
- High-resolution voice coil driven delay line
- Integrated controller
- Compact and portable design
- Pulse-analysis software
GECO is a scanning autocorrelator designed for pulse duration measurements of systems with ≥ 1 kHz repetition rate. Operation of GECO is based on noncollinear second-harmonic generation in a nonlinear crystal, producing intensity autocorrelation trace directly related to the input beam pulse duration. One arm of the fundamental pulse is delayed by a linear positioning stage, providing fast, reliable motion with 0.13 fs resolution. GECO can acquire a full intensity autocorrelation trace of 10 fs – 20 ps pulses and covers the 500 – 2000 nm wavelength range. GECO features noncollinearity angle adjustment and can be transformed into a collinear setup, allowing the performance of interferometric autocorrelation measurements for pulses in the 10 fs range.
GECO comes with an integrated controller and pulse-analysis software. It is also capable of generating FROG traces, if an external spectrometer is connected. Software APIs are available for custom user adaptations.
|Input wavelength range||500 – 2000 nm|
|Input pulse duration||10 – 20000 fs|
|Minimum repetition rate||1 kHz|
|Minimum input power||from amplifiers||2 – 200 mW @ 1 – 1000 kHz|
|from oscillators||800 nm, ≈ 100 fs: > 400 mW @ 75 MHz
1030 nm, ≈ 100 fs: > 250 mW @ 75 MHz
|Temporal resolution||0.13 fs / step|
|Scan rate||5 scans/s @ 1 – 1000 kHz|
Nonlinear optical properties of 6H-SiC and 4H-SiC in an extensive spectral range
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Cascaded nonlinearities in high-power femtosecond optical parametric oscillator
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Cascaded nonlinearity induced spatial domain effects in a high power femtosecond optical parametric oscillator
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Controlled soliton formation in a femtosecond optical parametric oscillator with positive group delay dispersion
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Exploiting optical nonlinearities for group delay dispersion compensation in femtosecond optical parametric oscillator
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High-resolution analogue of time-domain phonon spectroscopy in the transmission electron microscope
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Investigation of laser-induced damage and related multiphoton absorption changes in lithium niobate crystals at high repetition rate femtosecond pump
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Sub-Picosecond Optical Response of Metals Due to Non-Thermalized Electron Dynamics
L. Li, and Liang Zhang, L. Zhang, Y. Zhong, E. N. Wang, Z. Chen, L. Guo, and, and, and et al., ES Energy & Environment (2020).
Observation of Anisotropic Strain-Wave Dynamics and Few-Layer Dephasing in MoS2 with Ultrafast Electron Microscopy
Y. Zhang, and D. J. Flannigan, Nano Letters 11 (19), 8216-8224 (2019).
Characteristics of optical parametric oscillator synchronously pumped by Yb:KGW laser and based on periodically poled potassium titanyl phosphate crystal
J. Vengelis, A. Tumas, I. Pipinytė, M. Kuliešaitė, V. Tamulienė, V. Jarutis, R. Grigonis, and V. Sirutkaitis, Optics Communications 410, 774-781 (2018).
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