Round Photodiode sensor series measures laser power similar to the standard photodiode sensors where cylindrical geometry is preferable. Fits SM-1 threads.
Features:

• Spectral Range: 200-1100nm / 700-1800nm
• Round geometry for easy centering
• Threaded to fit standard SM1 bench equipment
• Same performance as standard PD300 sensors
• Comes with removable filter as standard
• Fiber optic adapters available

Ophir' photodiode laser energy sensors are able to measure low energy pulses down to pJ at frequencies up to 10KHz.
Features:

• Energy range: 10pJ to 15μJ
• Spectral Range: 190nm -1.8µm
• Silicon and Germanium detectors
• Repetition rates to 10kHz

Integrating spheres for measuring laser power of divergent beams, flat response sensors for broadband sources, eye response detectors for Lux measurements, peak detector for measuring scanned or chopped laser beams.
FPS-1 sensor for measuring temporal laser response into oscilloscope with 1ns response time.
Features:

• Spectral Range:420-1100nm
• Power Range: 50pW up to 3W / 200mLux - 200kLux
• PD300-BB for broadband light sources - radiometry
• PD300-CIE for eye adjusted Lux measurements
• BC20 for measuring scanned beams such as bar code light sources
• Integrating sphere for divergent beams
• Φ12mm aperture
• For fiber or free space input

Photodiode PD-300 sensor series measures laser power with spectral coverage from 200nm – 1800nm.
Automatic background subtraction so the laser measurement is not sensitive to room light. All models have wavelength calibration built into the system.
Features:

• Spectral range including UV and IR
• Very large dynamic range
• Swivel mount for hard to measure places
• Comes with filter in / filter out options
• Patented automatic background subtraction
• Fiber optic adapters available