Edmund Optics® Ultrafast Autocorrelator by APE
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www.edmundoptics.eu/LO 157
• Ideal for Characterization of Ultrafast Laser Pulses
• Built-in TPA Detector with >0,1 W2 Sensitivity @ 700 - 1100 nm
• Compact Design and Tuning Free Wavelength Matching
• Ideal for Low and High Repetition Rate Ultrafast Lasers
Wavelength Range (nm): 700 - 1100
Dimensions (cm): 10,2 x 10,2
Computer Interface: USB
Measurable Pulse Duration: 50 - 3500 fs
Scan Range: 150 fs - 15 ps
Sensitivity (W2): <0,1
Repetition Rate (Hz): >300
Maximum Input Power/Energy: 300 mW/5 μJ
Input Beam Polarization: Linear/Horizontal
Delay Resolution: <0,001% of Scan Range
Delay Linearity: <1%
Measurement Mode: Collinear Intensity
SHG Phase Matching: Not Required
Trigger Mode: 300 Hz - 50 kHz
Input Aperture (mm): 6
Fitting Routine: Gaussian, Sech2, Lorentz
Calibration: Certified NIST Traceable Calibration
Stock No. Price
#11-760 €10.500,00
To detect weak spectra in absorption spectroscopy, a common technique utilizes
multipass cells to pass light through a sample multiple times, increasing
the optical path length and amplifying the absorption signal. These multipass
cells, also known as Herriot cells, consist of two concave mirrors, or a concave
and flat mirror, with holes that act as entrance and exit apertures through the
cell (Figure 1). This configuration ensures a long optical path length through
increased reflections while being compact and stable to small perturbations.
This multipass configuration can be customized by Edmund Optics® by applying
the concept to an all-mirror pulse compressor design utilizing dispersive
mirrors. This technique increases the number of reflections while utilizing only
2 mirrors. Figure 2 illustrates the results of a dispersive mirror with GDD of
-1.000 fs2 and reflectivity of >99,9% between 1010 and 1070 nm.
Adding one or more dispersive mirrors to a multipass cell configuration is advantageous
in building a compact, tunable, and alignment-free ultrafast compressor.
Careful optical design of the system is necessary to obtain a high quality beam.
This compact compressor can be used in a Chirped Pulse Amplification (CPA)
laser system or as dispersion compensation in any ultrafast laser setup that will
allow for careful control and fine tuning of the pulse duration.
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-800
-1000
Figure 2. Measured GDD spectrum of the dispersive mirror used in the
compressor cell at 7° AOI, s-pol.
Figure 3. Autocorrelation measurement of the laser pulse
duration before and after the compressor. The signal was fit
using a sech2 function.
Figure 1. A scheme of a multipass cell consisting of two concave
mirrors with through holes.
7° AOI, s-pol
1010 1020 1030 1040 1050 1060 1070 1080
GDD (fs2)
Wavelength (nm)
-1200
-0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
Intensity
Time Delay (ps)
0
Intensity Before Compressor
Intensity After Compressor
Ultrafast Compressor Capabilities
Contact Edmund Optics® to discuss your ultrafast compressor needs.
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