Preliminary results on absolute frequency stabilization of Distributed Bragg Reflector (DBR) diode lasers with emission wavelength at 852 nm are reported. Saturated absorption D2 lines of cesium atoms have been adopted as a frequency reference and the non linear spectroscopy method of modulation trnsfer has been used to lock the laser frequency against the resonance. The analysis of the beat signal between two independent laser systems has shown a relative frequency stability of 10E-11 for an integration time of o.1 s, and a frequency noise floor in the order of 10E-12 for an integration time 0f 1 s seemsattainable.
Frequency stabilization of DBR diode laser against Cs absorption lines at 852 nm using the modulation transfer method
Galzerano G;
2001
Abstract
Preliminary results on absolute frequency stabilization of Distributed Bragg Reflector (DBR) diode lasers with emission wavelength at 852 nm are reported. Saturated absorption D2 lines of cesium atoms have been adopted as a frequency reference and the non linear spectroscopy method of modulation trnsfer has been used to lock the laser frequency against the resonance. The analysis of the beat signal between two independent laser systems has shown a relative frequency stability of 10E-11 for an integration time of o.1 s, and a frequency noise floor in the order of 10E-12 for an integration time 0f 1 s seemsattainable.File in questo prodotto:
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