Autocorrelator



Mini TPA is the perfect combination of tuning-free autocorrelation measurement, compact size and high sensitivity.


NIST Traceable Calibration

Laboratories and manufacturers are often faced with systematically establishing an unbroken chain of calibrations to specified references. All APE autocorrelator models are calibrated to a traceable standard in accordance with NIST (U.S. National Institute of Standards and Technology) measurement traceability specifications. A printed and signed calibration certificate is provided with each pulseCheck.

Tuning-Free Wavelength Matching

Conventionally, autocorrelators used to split an optical pulse into two replicas and recombine them for the Second Harmonic Generation (SHG) in a nonlinear crystal. The APE Mini TPA instead benefits from the two photon absorption principle. This eliminates the need of SHG crystal angle tuning and makes the wavelength tuning process unnecessary.

UV Range without Cross-Correlation

Together with an UV Optics Set, the Mini TPA provides simple pulse width measurement in the UV range, from 340 nm to 400 nm — without the need for cross-correlation. Elimination of the cross-correlation approach also makes the data evaluation easier, by cutting the conventional two-step process to a single-step solution.

UV at 340 nm to IR at 3200 nm

APE provides a selection of exchangeable Optics Sets, ranging from UV at 340 nm to IR at 3200 nm, for sensitive measurements across an extremely broad wavelength region. Due to its compact footprint, the Mini TPA is also the perfect answer to your space-saving and easy portability requirements.

Specifications

At a Glance

Mini TPA Specification 
* Measured sensitivity including Optics Set, defined as average power times peak power of the incident pulses P(AV) * P(peak)
Measurable Pulse Width Range50 fs ... 3.5 ps; Optional: down to 35 fs
Wavelength Range340 nm - 3200 nm, depending on Optics Set
Optics SetsExchangeable
Delay Resolution< 0.001 % of scan range
Delay Linearity< 1 %
Sensitivity*Typically 0.1 W2, UV range < 500 W2 (depending on Optics Set)
Recommended Repetition Rate> 300 Hz; For UV only: upper limit 2 MHz
Type of Measurement ModeCollinear intensity
Mode SwitchingNo
SHG Tuning for Phase MatchingNot required
Trigger Mode300 Hz ... 50 kHz
Input PolarizationLinear horizontal, vertical available as option
Max Input Power300 mW or 5 µJ (whichever results in lower value)
Input Aperture6 mm (free-space)
Input Beam CouplingFree-space; Optional: fiber coupling FC/PC, FC/APC, SMA
Beam Input Height86 ... 150 mm; Optional 50 mm
SoftwareIncluded; Real-time display of pulse width and central wavelength, different fitting routines
Fitting RoutineGaussian, Sech2, Lorentz
ConnectionUSB
Remote ControlPossible via TCP/IP (SCPI command set)
CalibrationNIST traceable calibration certificate included
  • Exchangeable Optics Sets for spectral coverage from 340 nm to 3200 nm
  • Tuning-free TPA detection process
  • UV measurement without cross-correlation
  • Compact design for minimum space requirements and maximum portability
  • Ultra-precise delay resolution
  • Hybrid collinear intensity autocorrelation
  • Gaussian, Sech2, and Lorentzian fitting routines
  • Including software and USB interface
  • TCP/IP remote control with standardized command set for easy programming
  • NIST traceable calibration
  • Aluminium carrying case

Datasheets & Brochures

Step Files (.stp)

APE-Mini-Stepfile-20150921 (.stp 3D CAD model with overall dimensions)

TCP/IP Sample Code for Remote Control


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More is More

Working with the pulseLink Controller (applicable to Mini TPA, Mini PD, pulseCheck)

Acquisition Software and TCP/IP Standard Software Interface

All models come with an easy to use data acquisition software, allowing for real-time data display. Furthermore, the TCP/IP-based standard software interface by APE makes it straight forward to set up remote control. This allows you, for example, to design your own automated measurement routines. Simply use our protocol templates for rapid configuration with familiar programming languages, including C++, C#, LabVIEW, Python, Matlab, and Ruby.



Our Autocorrelators at a Glance

A pulseCheck with FROG Option? A Mini? PMT, TPA, or PD Detector? Discover Our Autocorrelator Family.