Thorlabs PM300E Dual-Channel Optical Power Energy Meter

THORLABS DET36A/M High-speed Photo Detector

VINTAGE RETRO FOWLER OPTICAL COMPARATOR BENCH TOP OPTICAL COMPARATOR

Newport 1931-C Single Channel High-Performance Optical Power Meter

Newport Model 2936-R Dual Channel High Performance Optical Power Meter

Thorlabs Mounted Lens Kit - Partial Set - 10 N-BK7 Spherical Singlet Optics SM1

ThorLabs WM100 Omega Meter Laser Beam Profiler