The SA201 is specifically designed to control Thorlabs SA200 Series Fabry Perot Interferometers. The controller generates a voltage ramp, which is used to scan the separation between the two cavity mirrors. The controller provides adjustment of the ramp voltage and scan time, allowing the user to choose the scan range and speed. An offset control is provided to allow the spectrum displayed on the oscilloscope to be shifted right or left. Another convenient feature of the controller is a zoom capability that provides a 1X, 2X, 5X, 10X, 20X, 50X and 100X increase in the spectral display resolution. The ouput TTL level trigger allows the user to externally trigger an oscialloscope on either the beginning or midpoint of the ramp waveform.
The SA201 also includes a high precision photodetector amplifier circuit used to monitor the transmission of the cavity. The amplifier provides an adjustable transimpedance gain of 10K, 100K, and 1MV/A when driving a high impedance load, such as an oscilloscope. Using the ouput sync signal from the controller, an oscilloscope can be used to display the spectrum of the input laser. The detector circuity incorporates a blanking circuit, which disables the photodiode response during the falling edge of the sawtooth waveform.
This model is: SA201
Control Box for the SA200 Scanning Fabry Perot
Current Location: 36-228
Vendor: Thorlabs
Manual: Instruction Manual
Specifications: N/A
LabView Programs: N/A
Price: $841.50
Purchase Date: 7-15-2010