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FSAC Interferometric Autocorrelator
OVERVIEW
Thorlabs' FSAC Interferometric Autocorrelator provides approximate pulse width measurements in the 650 - 1100 nm wavelength range. Well suited for diagnostics of femtosecond Ti:Sapphire lasers and 1um oscillators, it consists primarily of a modified Michelson interferometer with a nonlinear detector at the output.
A BNC connector outputs the autocorrelation signal, which can be viewed on any oscilloscope with >1.5 MHz bandwidth. An example of the direct output from the FSAC is shown in the graph to the right. A photodiode amplifier with selectable gain from 0 dB to 70 dB provides compatibility with a large range of optical input powers, up to a maximum average power of 150 mW.
Intuitive, easy-to-reach controls on the outside of the enclosure allow the user to optimize the resolution and fringe contrast. The controls for the delay arm enable a full scan range of 50 fs to 10 ps (i.e., ±25 fs to ±5 ps), and a micrometer tunes the detector's position for maximum signal.
For the most up to date information, please visit Thorlabs.com.
SPECIFICATION
- Device Type: Autocorrelator
- Measurable Pulse Width: 15 - 1000 fs
- Wavelength Range: 650 - 1100 nm
- Input Polarization: Horizontal
- Scan Range: 50 - 10,000 fs
- Input Repetition Rate: >300 kHz
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