For example: Agilent E4440A or Anritsu 68369
SR540 Optical Chopper

Model:SR540

Manufactured by: Stanford Research Systems

Category:Amplifiers

Stanford Research Systems SR540 - Amplifiers

Stanford Research Systems SR540 Overview

The Stanford Research 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, analogvoltage 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.

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