Stanford Research Systems SRS SR540

Stanford Research Systems SRS SR540

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Description

Low Jitter Optical Chopper The Stanford Research System SR540 Low jitter optical chopper handles 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. Single-Beam Experiment In this application, a single optical beam is chopped by the outer row of slots, and the reference output from the right BNC is used to lock the lock-in amplifier to the chop frequency. The inner row of slots could also be used, in which case the left BNC would be the reference output.

Specifications

ManufacturerStanford Research Systems
ModelSRS SR540
ConditionUsed