Stanford Research SR540

Optical Chopper
SR540 - Optical chopper system

* 4 Hz to 3.7 kHz chopping frequencies
* Low phase jitter
* Single and dual beam experiments
* Sum & difference reference outputs
* Bolt clamp or rod mounting



The SR540 chopper will handle all your optical chopping requirements—from simple measurements to dual-beam and intermodulation experiments. The SR540 has a 4-digit frequency display, front-panel frequency control, analog voltage frequency control and two reference outputs with selectable operating modes. Two anodized aluminum blades are provided: a 5/6 slot blade for frequencies up to 400 Hz, and a 25/30 slot blade for frequencies up to 3.7 kHz. Reference outputs are provided for frequencies corresponding to each row of slots, as well as the sum and difference frequencies.

Stanford Research SR540 datasheet & specifications