SOLVED:An optical chopper is a device placed in the laser beam path to periodically obstruct the light: If a continuous wave laser beam is passed through an optical chopper; it is "chopped"
RM9 with Chopper | Laser Thermal Power Sensors | Power Sensors - Ophir
SciELO - Brasil - Prototypes and modulation functions of classical and novel configurations of optical chopper wheels Prototypes and modulation functions of classical and novel configurations of optical chopper wheels
White Paper – Working in the Basement: Measuring Signals Below the Noise Floor with a Lock-In Amplifier | Ophir Photonics
Optical Chopper Application Note: Pulse Picking
Diagram of commercial chopper and chopper wheel. | Download Scientific Diagram