miniScan – Scan Generator, PD Amplifier
- Stand-alone scan generator and photo diode amplifier
- HV output range 0 – 100 V
- Scan frequency range 100 mHz – 200 Hz
- Transimpedance amplifier with 6-stage gain switch
- Designed for scanning interferometers, e.g. FPI 100
The miniScan 102 comprises a scan generator, piezo driver and a photodetector amplifier. The unit has been designed for scanning interferometers like TOPTICA’s FPI 100 and matches the amplitude and frequency range of standard piezo actuators. However it can also be used independently for everyday laboratory tasks. A simpler version without PD amplifier is also available (miniScan 100).
Technical Information
Technical Information
| Concept | Stand-alone scan generator, with optional photo diode amplifier |
|---|---|
| Scan generator (miniScan 100, miniScan 102) | |
| Frequency range | 100 mHz – 200 Hz, adjustable via 3-stage range switch (coarse) and potentiometer (fine) |
| HV amplifier | 0 – 100 V, unipolar, max. 2.5 mA |
| HV offset and amplitude | Adjustable via potentiometer |
| Trigger output | TTL (+ 5 V) |
| Photo diode amplifier (miniScan 102 only) | |
| Gain | 3.3 x 104 V/A – 1 x 107 V/A, Adjustable via6-stage range switch (coarse) and potentiometer (fine) |
| Output offset | Adjustable via potentiometer |
| Output coupling | AC, AC-HF or DC |
| Detection bandwidth | 30 kHz |
Mode spectrum of a single-frequency laser, recorded with a scanning Fabry-Perot interferometer + miniScan 102. Red: scan generator output, blue: photodetector signal.
