Laser Components (Hudson, NH) offers
the LSP40 plug & play driver module,
which can be used to accurately control
pulsed laser diodes (PLDs). With two resistors,
the user is able to regulate the
operating current (and thus the laser
power) and the pulse length. It requires an
operating voltage of 12 VDC and an external trigger
signal. The laser current can be set to any value up to 40A, and the pulse
length can be set to between 30ns and 150ns. At a reduced current,
pulse lengths up to 1μs are achievable.
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