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 Storenull


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 driver to operate the pulser. If you have a pulser model Rev. 5 (the revision number should be visible on the board) you can use one of these drivers for Mac OS X,Linux or Windows computers. Older pulsers bought in 2017 or prior may use the older version of the driver which is also available for Windows, Mac OS X or Linux.

If the software requires to upgrade the firmware, you can use the firmware upgrader for Mac OS XWindows or for Linux to upgrade to the latest version. 

If your computer does not recognize the USB-RS 232 converter, you can find a driver here; most computers should recognize 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