This is the right driver for lasers that require a high-precision
and ultra-low noise current source. The QCL Series drives up to 2 A of
low noise current with core safety features – current limit, slow
start, brownout / reverse voltage / overvoltage protection, remote or
local current enable. Even though it is lower cost than an instrument,
it is smaller and offers significantly better performance.
QCL Series Data Sheet.pdf