The D200 is the latest in Highland Technology's (San Francisco, CA) line of high-performance compact precision laser drivers. A DC-coupled trigger signal produces fast, 2 nanosecond transitions. Up to 4 amps of regulated drive current supports lasers with forward voltages up to 9 volts. The built-in edge-triggered pulse generator provides up to 1us pulse widths. A pulse-follower mode is also provided, accommodating externally-defined trigger widths up to 100% duty continuous-wave (CW). Power, pulse width, drive current, and differential triggering functions are accessible through a ribbon cable header for embedded OEM applications.