APE | pulseCheck Models

Optics and Detector Technology for UV to IR (200 nm - 12 µm):

Various detectors and optics covered by variety of professional applications. Photomultiplier (PMT) detectors offer high sensitivity for low-energy pulse measurements. Photodiode (PD) detectors excel in measuring high peak power lasers. Efficient optics enable measurements across a broad 200 nm to 12 μm spectrum.

Pulse Duration Measurement from Ultrafast to Longer Pulses (5 fs - 500 ps):

PulseCheck configurations adapt to specific pulse duration measurement needs. PulseCheck SM measures extended pulse durations up to 500 ps.

NIST Traceable Calibration:

APE autocorrelators adhere to quality assurance standards through NIST traceability (U.S. National Institute of Standards and Technology). Each pulseCheck includes a calibration certificate, with renewal options available at APE or via certified partners.

Plug & Play and Easy Network Integration:

PulseCheck offers intuitive plug-and-play via USB. PulseCheck NX integrates into automated environments via Ethernet (SCPI over TCP/IP), eliminating the need for an extra PC, and enables remote control over a network.

Modular Design:

The pulseCheck series features a modular design for maximum functionality and flexibility. Optics sets for wavelength range upgrades or FROG capabilities can be added as needed.

Optics Sets :

A variety of different and exchangeable optics sets cover a wide wavelength range: from UV at 200nm to mid IR at 12μm.

Option FROG measurement for pulseCheck NX :

Second Harmonic Generation FROG is the most popular spectrometer-less Frequency Resolved Optical Gating method. The pulseCheck NX autocorrelators by APE optionally integrate FROG, giving access to complete pulse characterization. This option allows for the comprehensive characterization of both spectral and temporal aspects of the pulses.

Flexible Measurement Modes: Collinear and Non-Collinear :

Our autocorrelators allow for seamless switching between collinear and non-collinear measurement modes, providing users with a comprehensive understanding of their pulses. The collinear mode, also known as interferometric or fringe-resolved mode, offers valuable qualitative information about the chirp and central wavelength of the pulse. In contrast, the non-collinear mode, or intensity autocorrelation, provides background-free, high dynamic range autocorrelation. This flexibility is also available with the Mini TPA and TPA optics sets for pulseCheck, enabling users to switch between these two modes with ease.

Simplified Phase Matching :

Autocorrelators rely on phase-sensitive and nonlinear processes, requiring precise phase matching. Our pulseCheck autocorrelators achieve this through software-aided phase matching for each wavelength range, ensuring precise and fast operation without the need for manual adjustments. Furthermore, our TPA detectors combine the detector and nonlinear optics in a single element, eliminating the need for phase matching adjustments altogether. This streamlined process makes measurements easier and more efficient.

Intuitive Acquisition Software and TCP/IP Standard Software Interface :

All our models come with user-friendly data acquisition software, allowing for real-time data display and facilitating the measurement process. The TCP/IP-based standard software interface enables straightforward remote control setup, allowing users to design their own automated measurement routines. Our protocol templates simplify rapid configuration with familiar programming languages, including C++, C#, LabVIEW, Python, Matlab, and Ruby. This flexibility enables users to tailor their measurement routines to their specific needs.

Standard TCP/IP Interface for Seamless Integration :

Our software interface is based on the standard TCP/IP communication protocol, enabling effortless integration of our devices into local area networks (LANs) and utilizing the internet infrastructure for large-distance remote access. The TCP/IP protocol is widely supported by various programming languages, ensuring compatibility and ease of use. Each device comes with a complete interface documentation, and example codes are available for common programming languages, including C++, C#, LabVIEW, Python, Matlab, and Ruby. The key advantages of our TCP/IP interface include:

• Uniform structure of commands
• SCPI99 compatible command syntax
• Interaction of complex control commands via the control software
• Access to processed data rather than raw data
• Direct access to measurement parameters calculated from the processed data
• Management of status information

These features enable users to easily integrate our devices into their existing infrastructure, streamlining their measurement processes and enhancing their overall productivity.

Features :

• Exchangeable Optics Sets for wavelength coverage from 200 nm to 12 μm
• Wide range of sensitivity levels covered with PMT, PD, and TPA
• High temporal resolution with a sampling resolution down to 50 attoseconds
• Toggle between interferometric and intensity autocorrelation
• Integrated Controller for data acquisition, data fitting, and fast FPGA data processing
• Software aided wavelength tuning of crystal (phase matching)
• Fully compliant with DIN 58175-2:2021-04 (pulse measurement)
• NX-Software and USB as well as Ethernet connection
• TCP/IP remote control with standardized command set for easy programming
• Option: FROG for complete pulse characterization

Specifications :

*Measured sensitivity including optics set, defined as average power times peak power of the incident pulses P_AV * P_peak.

Visual Summary of all new pulseCheck NX Features :

APE pulseCheck NX - Quick Installation Guide :

Brochures & Datasheets :

   pulseCheck NX Modular Autocorrelator Brochure (pdf / English)