The driver is a controlled source and generator of short pulses for a low-power narrow-band laser diode with distributed feedback in a butterfly-type housing. The driver can operate in continuous, pulse and mixed modes. In the pulse mode, it can be both a receiver and a source of an electric sync signal. It contains a built-in thermoelectric cooler controller (TEK), which provides precision thermostatic radiator. Built-in external locking function. It is controlled via a personal computer through a unified interface, thanks to the attached software.