SA201 In Stock

The ThorLabs SA201 is a sophisticated control box designed to facilitate highly stable and low-noise voltage ramp generation for Fabry-Perot interferometers. Engineered with precision and accuracy in mind, the SA201 offers unmatched flexibility in terms of scan range and speed, thanks to its adjustable ramp voltage and scan time.

One of the most convenient features of the SA201 is its offset control, which allows the user to shift the spectrum displayed on the oscilloscope either left or right. Additionally, the SA201 is equipped with a zoom capability that offers a range of options from 1X to 100X, providing an impressive increase in spectral display resolution. The SA201's output TTL level trigger enables external triggering of an oscilloscope on the beginning or midpoint of the ramp waveform, offering greater control and customization of the overall process. The SA201 also incorporates a high precision photodetector amplifier circuit that monitors the cavity transmission. This amplifier provides an adjustable transimpedance gain of 10,000, 100,000, and 1,000,000 V/A when driving a high impedance load, such as an oscilloscope.

The SA201 also includes a high precision photodetector amplifier circuit used to monitor the transmission of the cavity. It features an adjustable transimpedance gain of 10,000, 100,000, and 1,000,000 V/A when driving a high impedance load such as an oscilloscope, providing flexibility and versatility to suit a range of applications. With the output sync signal from the controller, an oscilloscope can be used to display the spectrum of the input laser, making it easier for users to visualize and analyze the data. To ensure optimal performance and reduced noise, it is recommended to use a 50 W coax cable with a 50 Ω terminating resistor. Additionally, the detector circuit incorporates a blanking circuit, which disables the photodiode response during the falling edge of the sawtooth waveform. This feature ensures precise and accurate monitoring of the cavity transmission. The SA201 is equipped with photodetector input and output BNC connectors located on the rear panel, providing convenient access and ease of use.