CoSy – Doppler Free Spectroscopy
- Compact module for Doppler free absorption spectra
- For laser stabilization
- With magnetic field compensation
- Available with built in Rb, Cs, K or mixture cell
- 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 CoSy with doubly filled Cs + Rb cell serves as a frequency reference at both Cs and Rb frequencies.
Technical Information
Technical Information
Doppler-free and Doppler-broadened absorption spectrum of Cesium. All hyperfine and cross-over lines are resolved.
CoSy Specifications
| Dimensions of gas cell | ø 26 mm x 25 mm or ø 26 mm x 15 mm |
| Available fillings | Rb, Cs, K |
| Fiber input power | 1 μW ... 3 mW, depends on required resolution and SNR |
| Gain of photo detector amplifiers | Adjustable via range switch (coarse) and trim potentiometer (fine) |
| Set temperature of glass cell | Adjustable via trim potentiometer, range 10 to 40 °C (no cooling below room temperature) |
| Electronic outputs (BNC sockets) | A: Doppler-free absorption spectrum B: Doppler-broadened absorption spectrum I: Optical input power level |
| Integrated 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 mm3 |
| Operating voltage for CoSy control | 100…120 V / 220 .. 240 V AC, 50 .. 60 Hz (auto detect) |
Options & Related Products
Options & Related Products
Options:
- Faster version with a bandwidth up to 5 MHz for high frequency modulation.
Related Products:
- DL pro: pro series ECDL with exceptional AR laser diodes
- DL 100 / pro design: Tunable, ultra-stable ECDL
- DL 100: Economic Littrow type ECDL in modified Hänsch design
- TA pro: Ultra-stable tunable high-power diode laser
- DLX: Compact tunable high-power laser at 766 nm and 780 nm
- DigiLock 110: Digital module for laser control, locking and analysis
- LaseLock: Stand-alone laser stabilization solution
Technical Drawings
Applications
Applications
Please refer to the Applications pages of our tunable diode lasers.
