Cascade Laser can provide 100's of different laser power meter sensors. These include semiconductor (optical) photodiodes and thermal (thermopile) detectors. This diversity enables laser power measurement over an extremely broad range of laser output characteristics and will allow you to select a system that meets your particular requirements in terms of performance, accuracy and cost. For simplicity and to keep our site less cluttered, we have only included the most popular laser power meter sensors and detectors here. If you don't see what you need here, please contact us and let us know your requirements ... I'm sure we'll be able to help. We can offer anything from the Molectron and Coherent product lines.