Thor Labs CMI-BS015 Non-Polarizing Beamsplitter Cubes in 30mm Cage

Sage Laboratories 6705-2 Phase Shifter (DC-18GHz)

Nikon 6D Autocollimator with Light Source (as shown)

Photonics EAR-20K-C-LP-SF Fiber Amplifier

Optical Cage System w 2" cube/ filter & fiber optic mounts + focusing lens

HP Agilent Keysight N7761A / Opt: 022 1 ch Variable Optical Attenuator

Thorlabs BS030 Non-Polarizing Beamsplitter Cube