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ADD:Room201-206,3rd building, No.399 Duhui Road,Minhang District,Shanghai


Laser Products

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IRA. Scanning Autocorrelator with Extended Scan Range

● 50 fs - 250 ps broad input pulse duration range
● 450 nm - 11 um input wavelength range
● USB interface and Windows software included in a standard package

    The IRA scanning autocorrelator is specifically developed for measurement of pulse duration and near contrast ratio of ultrafast radiation generated by ultrafast amplifiers and oscillators. There is also a special model of the IRA system that is suitable for mid-IR laser sources.

    The IRA includes opto-mechanical assembly and electronics with USB interface. The system is easy to operate and includes a full set of user friendly Windows software tools for data collection and analysis. Approximation with Gauss and Sech^2 shapes is also available. The unit implements a robust scanning mechanism.

    The acquisition and analysis software is fully compatible with Windows, USB drivers are included


Ultrafast Laser Diagnostics, Accessories and Components

  • Femtosecond Oscillator Pulse Duration Measurement

  • Femtosecond Pulse Duration Measurement and Dispersion Characterization

  • Femtosecond and Picosecond Pulse Duration and Near Contrast Measurement

  • Novel Ultrafast Fiber Laser Development

  • Femtosecond and Picosecond OPA Pulse Duration and Near Contrast Measurement

  • Amplifier Design



Full possible input wavelength range*

450-2000 nm2-11 um


VIS: 450-700 nm

NIR1: 700-1300 nm

NIR2: 1300-2000 nm

MIR1: 2-5 um

MIR2: 5-11 um

Input pulse duration range

50 fs - 250 ps

Required input pulse energy**

>1 nJ at 50 fs - 1 ps (w. thin NL crystals)

>3 nJ at 1-250 ps (w. thick NL crystals)

>5 nJ at 50 fs - 1 ps (w. thin NL crystals)

>100 nJ at 1-250 ps (w. thick NL crystals)

Maximum input average power


Input repetition rate

10 Hz - 100 MHz

Input polarization

linear, horizontal

Delay line temporal resolution

8.3 fs

Full scan range

850 ps

Required equipment

PC with USB; Windows acquisition and analysis software included

Power supply

220/110 V; 50/60 Hz ±10%


optical unit: 450x250x210 mm

control unit: 250x180x90 m

* - each subrange is covered by an exchangeable optics set (NL crystals, beamsplitters, filters, photodetectors). A set for one of the subranges of the customer's choice is supplied with the unit, additional sets are supplied upon request; the final set of optics and detectors depends on the specifications of the sources to be measured and is discussed with our sales manager upon offering;

** - typical values, depends on input pulse duration and wavelength.