Doppler-free and Doppler-broadened absorption spectrum of Cesium.
All hyperfine and cross-over lines are resolved.
Compact Saturation Spectroscopy
Doppler Free Spectroscopy
- Compact module for Doppler free absorption spectra
- For laser stabilization
- With magnetic field compensation
- Triple filling with Rb, Cs and K
- Enables long term stability better than 10-9
CoSy generates both purely Doppler-free and purely Doppler-broadened absorption saturation spectra, which can be fed directly to appropriate stabilization electronics. CoSy can conveniently be used for top-of-fringe stabilization with a modulation technique (bandwidth 50 kHz .. 1 MHz). The CoSy module helps the customer save time and space in his experiment. The absorption cell of the Cosy is filled with Rb, Cs and K and serves as a frequency reference for Rb, Cs and K frequencies from a single device.
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Specification
Dimension of gas cell ø 26 mm x 25 mm Filling Rb, Cs and K Recommended input power Cs: 0.1 .. 3 mW
Rb: 0.5 .. 3 mW
K: 0.5 .. 3 mWGain of photo detector amplifiers Adjustable via range switch (coarse) and trim potentiometer (fine) Set temperature of glass cell Adjustable via trim potentiometer, range 20 ... 70 °C (no cooling below room temperature) Electronic outputs (BNC sockets) A: Doppler-free absorption spectrum
B: Doppler-broadened absorption spectrum
I: Optical input power levelIntegrated field coil AC or DC magnetic field for magnetic field compensation,magnetic flux density: range ± 70 μT Housing dimensions CoSy head 80 x 80 x 114 mm3
CoSy control 88 x 125 x 209 mm3Operating voltage for CoSy control 100…120 V / 220 .. 240 V AC, 50 .. 60 Hz (auto detect) -
Additional Information
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Options
Faster version with a bandwidth up to 5 MHz for high frequency modulation.
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Downloads
- Brochure: Scientific Lasers (please see website for latest specs!)
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