Why buy a PCX-7401/7421 instead of building a custom laser diode driver?
Building a custom pulsed laser diode driver requires significant electrical engineering expertise in high-speed current regulation, diode protection, and thermal management — a single design error can destroy expensive laser diodes. The Berkeley Nucleonics PCX-7401 and PCX-7421 provide professionally engineered, tested, and calibrated drivers with features that are difficult to replicate in custom builds: precision…