[Overview]
The basic principle of GECO autocorrelation instrument can be summarized as follows: the input beam passes through a nonlinear crystal to generate a second harmonic, which generates an intensity autocorrelation curve proportional to its pulse width. Using a magnetic linear positioning system as a delay line for splitting a fundamental pulse beam, the positioning is fast and accurate, with a resolution of less than 0.15 fs. GECO can obtain a complete intensity autocorrelation curve within the range of 10 fs to 20 ps, covering the entire wavelength measurement range of 500-2000 nm.
GECO can adjust the angle between two non collinear beams, and when the two beams are collinear, interference autocorrelation measurement with a pulse width less than 10 fs can be achieved. In order to obtain accurate measurement results, the autocorrelation instrument ensures that the two beam splitters have the same dispersion parameters. GECO comes with a convenient pulse analysis software that provides simple pulse width measurement. The computer is integrated inside the autocorrelation device, so it can communicate through TCP/IP protocol to ensure simple and smooth installation. GECO's software and hardware can support FROG curve generation by simply connecting an external spectrometer to a fiber coupler. The software API can be used to customize user adaptations.
Related Instruments
Click here to view ☞: TIPA Autocorrelated Instrument
[Specification Parameters]
parameter |
numerical value |
Input wavelength range |
500 – 2000nm |
Temporal resolution |
0.13fs/step |
Measurable pulse width |
10 – 20000fs |
Minimum average radiated power |
2–200mW @ 1–1000kHz |
scan rate |
5 scans per second @ 1-1000 kHz |
detector |
silicon photodiode |