Loading...
Laser servo controller
Koheron PI200 is a laser servo controller with PI² loop filter.
| Quantity | Price |
|---|
Resources
Specifications
| PI200 | PI200-T | |
|---|---|---|
| Servo | ||
| Control bandwidth | 5 MHz | 5 MHz |
| Loop delay | 20 ns | 20 ns |
| Slow integrator frequency range | 800 mHz to 800 Hz | 8 mHz to 8 Hz |
| Fast integrator frequency range | 47 kHz to 4.7 MHz | 47 kHz to 4.7 MHz |
| Output voltage noise(0 dB gain) | 5 nV/√Hz | 5 nV/√Hz |
| Input voltage range | -2 V to 2 V | -2 V to 2 V |
| Input impedance | 50 Ω | 50 Ω |
| Output voltage range(50 Ω) | -2 V to 2 V | -2 V to 2 V |
| Power supply | ||
| Positive supply voltage | 4.75 V to 6 V | 4.75 V to 6 V |
| Negative supply voltage | -6 V to -4.75 V | -6 V to -4.75 V |
| Supply current per rail | 220 mA | 220 mA |
| Quiescent current per rail | 45 mA | 45 mA |
| Other | ||
| Outside dimensions | 75 mm x 60 mm x 14 mm | 75 mm x 60 mm x 14 mm |
| Weight | 40 g | 40 g |
| Operating temperature | 0 °C to 50 °C | 0 °C to 50 °C |
Characterization
Input referred voltage noise
Input voltage noise measured for a gain of 10 between the input and the error signal output.
Transfer functions
Error signal
Bode plot of the transfer functions from the signal and modulation inputs to the error output:
Fast output
Transfer functions between the input and the fast output. Fast integrator gain is set to its minimum value (47 kHz). Global gain is -20 dB and input signal is 150 mVpp.
