The CPD Series laser modules are designed expressly to host laser diodes that do not have their own internal photodiode. The CPD overcomes this challenge by integrating an internal photodiode after a collimating lens. This configuration allows for Automatic Power Control (APC) mode of operation. APC Control is not available on a majority of competing DPSS lasers at these wavelengths. The stability of this configuration cannot be matched by inexpensive DPSS lasers.
The CPD module operates on 5VDC