Merghart.com - TTL/Analog controlled opamp based current source
Laser Diode Driver with TTL Control. PCB V2.0 is ready.
a) Schematics of the Howland laser driver circuit. (b) Photograph of... | Download Scientific Diagram
High Power Laser Diode Driver ( 100 AMPS / 30 VOLTS )
A simple TTL modulated diode laser
4W Industry Laser 445nm/447nm/450nm 4000mW Blue Laser Dot Module Diode NDB7A75 w/ TTL0-20kHz & Fan Cooling & Long Time Working: Amazon.com: Industrial & Scientific