SPIDER. Spectral Phase Measurement System

The unit is designed for measurements of spectral phase and spectral intensity of femtosecond pulses.
  SP-30 SP-120 SP-7   SP-10/120
Input wavelength range 650-1050* nm
Input pulse duration range 8-32 fs 30-120 fs 6-22 fs 10-120 fs
Sensitivity 100 mW at 100 MHz;
~1 uJ in single-shot mode
Input pulse repetition rate any*
Input polarization linear, horizontal
Dimensions 385x295x125 mm (including spectrometer)
* - please specify the required values with your request.

The SPIDER (Spectral Phase Interferometry for Direct Electric field Reconstruction) system provides precise phase-amplitude measurement of ultrashort laser pulses. The device is widely used for on-line tuning of amplifier systems. The device is used to measure spectral phase, spectral intensity and temporal intensity. It also displays an autocorrelation function.

The principle of operation is based on spectral shearing interferometry. The spectral phase property is reconstructed from a spectral interferogram registered by a CCD. The other CCD records spectral amplitude of the input pulse. The phase-amplitude characteristic in time domain is obtained by Fourier transformation of the spectral phase-amplitude characteristic. The reconstruction algorithm used is linear and non-iterative. The unit has a built-in two-channel spectrometer for spectra registration and a CCD camera for easier alignment at low repetition rates.

The SPIDER features a USB connection with acquisition and analysis Windows software.

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