ProPhotonix Limited announced the development of a new 405nm laser module with an external photodiode. The new laser module provides excellent output control over a long period of time. 405nm laser diodes are not typically packaged with an internal photodiode.

Where a monitor photodiode is packaged with the laser diode, the photodiode typically degrades over time. This new design includes an external photo diode designed to deliver excellent output control in the 1mW to 150mW range. The durable photodiode used has high sensitivity to 405nm radiation for more precise control of laser output.