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TOPAG Lasertechnik GmbH
Nieder-Ramstädter Str. 247
64285 Darmstadt
Telefon: +49 6151 4259 78
Telefax: +49 6151 4259 88 
E- mail: info [at] 

Autocorrelator TiPA

Femtosecond Single Shot Autocorrelator TiPA


Single-Shot Autocorrelator TiPA is an invaluable tool for alignment of femtosecond laser systems. Its unique design allows monitoring and measurements of the pulse duration from 30fs to 1ps in wavelength range 500nm - 2000nm as well as 2-dimensional measurement of the pulse front tilt.



Bezeichnungen der Tabs

  • Description
  • Specifications
  • Dimensions
  • Pictures
Tab 1


  • Measures pulse duration in 30- 1000 fs range
  • Measures pulse-front tilt
  • Working range down to 500 nm and up to 2000 nm
  • Easy to align and operate
  • Compact and flexible design
  • Hi-speed USB 2.0 CCD camera is used for image scan
  • Simple pulse-analysis software

Operation of TiPA is based on non-collinear second harmonic (SH) generation, where the spatial distribution of the SH light contains information on the temporal shape of the fundamental light pulse. This technique combines low background and the single-shot measurement capability. The basic idea is that two replicas of a fundamental ultrashort light pulse pass non-collinearly through a nonlinear crystal, in which SH generation takes place. SH beam’s width and tilt in a plane perpendicular to propagation provide information about the pulse duration and tilt of pulse front.

The SH beam can be monitored at two output ports simultaneously:
1. Dirrect output- the beam can be viewed on a paper card (useful for alignment and quick optimization without a computer).
2. Output into a CCD camera- pulse duration and pulse-front tilt measurement is done using dedicated software.

The width (a dimension which lies in the beams’ intersection plane) of the SH pattern is proportional to the duration of the incident pulse. If the pulse front is tilted the output SH ellipse is also tilted with respect to the beams’ intersection plane. (Un-tilted pulse produces SH ellipse perpendicular to the beams’ intersection plane).

Tab 2

TiPA models*


Operation wavelength, nm


700 - 900


900 - 1100
AT5C3 500 - 2000

*Non-standard models available on request

Performance specification

Wavelength range, nm

500 - 530 530 - 700 700 - 2000
Temporal resolution ~500 fs/mm 

Measurable pulse width, fs

40 - 120 40 - 1000 30 - 1000
Minimum average power of radiation ~5 mW @1kHz  ~5 mW @1kHz  ~1 mW @1kHz

CCD specifications

Maximum resolution

1296 (H) x 964(V)

Pixel size

3.75 μm x 3.75 μm

Analog-to-Digital converter

12 -bits
Spectral response 0.35 - 1.06 μm
Power consumption from USB bus 2W (max) at 5V

Tab 3

Dimensions, mm

Full dimensions 212 W x 256 L x 210 H
Housing 122.5 W x 155 L x 68 H
Beam interception height 100 - 180
2.8 kg



Tab 4

Tab 4 Inhalt

Tab 5
Bild 1
TiPA Product 
Beschreibung 1
TiPA external view 
Bild 2
TiPA Product CAD 
Beschreibung 2
Bild 3
TiPA dimensions 1 
Beschreibung 3
TiPA dimensions 
Bild 4
TiPA dimensions 2 
Beschreibung 4
TiPA dimensions 
Bild 5
TiPA Spektrum 
Beschreibung 5
TiPA control software 
Bild 6
TiPA Spektrum 2 
Beschreibung 6
Sample autocorrelation with data fitting 
Bild 7
Beschreibung 7
Bild 8
Beschreibung 8
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Beschreibung 9
Bild 10
Beschreibung 10
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