ASF. Single-Shot Autocorrelator for Femtosecond and Picosecond Pulses

This single-shot autocorrelator family is designed to measure a wide range of laser sources from ultrafast oscillators to amplifiers in single-shot and multiple shot accumulation mode. The system is also indispensable for real-time control and alignment of low repetition rate amplifier systems.
  ASF-5 ASF-15 ASF-50 ASF-200
Possible wavelength range 400-2200* nm 450-2200* nm
Input pulse duration range 5-200 fs 15-200 fs 50 fs - 2 ps 200 fs - 10** ps
Required pulse energy single-shot mode: from 1 uJ at <200 fs; up to 100 uJ at 10 ps;
multiple-shot mode: from 1.2 nJ at <100 fs, 80-100 MHz (~100 mW average power)
Input pulse repetition rate single-shot...150 MHz;
single-shot mode (registration of single pulses): from single-shot to 50 kHz;
multiple-shot mode (averaging of 2 or more pulses): >50 kHz
Input polarization linear, horizontal (vertical upon request)
Data interface USB with Windows PC acquisition and analysis software (included in the standard package)
Dimensions (LxWxH)  248x54x54 mm 156x120x70 mm 215x120x70 mm 430x240x80 mm
Input beam height range (customized on request) 47/67/87/107 mm (fixed, select one value) 56-110 mm (adjustable) 64-110 mm (adjustable) 64-110 mm (adjustable)
 * - exact wavelength range is quoted based on each customer's requirements;
** - from 500 fs to 15 ps on request; combined ranges from 100 fs may also be possible upon request for some cases.

The ASF single-shot autocorrelator is designed for monitoring the pulse duration of ultrafast oscillators and amplifiers, as well as for real-time amplifier systems tuning. The CCD camera registers the transverse section of the non-collinear generation of the second harmonic of the input radiation (the SH is generated in a non-linear crystal). PC USB interface and Windows acquisition software provide for smooth and easy data transition and registration, while additional LabView-compatible drivers offer extended flexibility and on-line control in complex multi-stage experimental setups.

There are four basic models of the ASF family covering a broad possible operating wavelength range.

The ASF-5 system allows measurements of few-cycle pulses with pulse duration as short as 5 fs. The system is based on non-dispersive beam splitting technique providing best accuracy for few-cycle pulse measurement.

The ASF-15 system is a compact unit for routine characterization of low-repetition-rate ultrafast amplifier output as well as seed oscillator output in the range of 15 fs to 200 fs.

The ASF-50 and the ASF-200 units offer extended longer pulse duration measurement limit for ultrashort-pulse amplifier development and tuning. The ASF-200 unit is also used for precise control of pulse duration at the output of commercial laser systems with a tunable compressor unit.

Please feel free to enquire about custom pulse durations and wavelength ranges.

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