S-2 QCL Pulser
The S-2 QCL Pulser is designed to provide fast, high impedance current pulses to non-linear current driven devices such as quantum cascade lasers. The generated pulses have a rise time between 5 and 15 ns.You can buy it now directly on the Alpes Lasers Web Store! 
The S-2 pulser is controlled directly through a computer terminal when the S-2 is connected by a serial or USB cable. You will need a GUI to operate the pulser. If you have a pulser model Rev. 5 (the revision number should be visible on the board) you can use the latest S-2 pulser GUI for Mac or for Windows.
The S-2 pulser is controlled directly through a computer terminal when the S-2 is connected by a serial or USB cable. You will need a GUI to operate the pulser. If you have a pulser model Rev. 5 (the revision number should be visible on the board) you can use the latest S-2 pulser GUI for Mac or for Windows.
If your computer does not recognise the USB-RS 232 converter, you can find a driver here; most computers should recognise the converter without a specific installation.
If you wish to control the driver through direct commands, you can find the API here. You can use the API with no additional fee; optional Service and Support agreements are available.
| S-2 Pulser Specifications | |
|---|---|
| Max. Repetition Rate | 1 MHz |
| Pulse Width | 20ns to CW in 20 ns increment |
| Max Output Voltage | 25V |
| Voltage Setting Resolution | 5 mV |
| Current Measurement Resolution | 2 mA |
| Max. Current Output | 8 A peak, 2.5 A average |
| Output Voltage Modulation Bandwidth | 1 kHz |
| Input Voltage | 8-20V |
| Power Supply (included) | 18V/40W |
| External Modulation/Trigger | included |
| Overcurrent Protection | included |