Abstract
We have developed a means to control rapidly frequency-chirped laser light at large detuning, by controlling the input modulation frequency of a \(\sim\)7 GHz signal into an electro-optical phase modulator in an injection-locked laser system. We show that we can extend the capabilities of the system to effectively pulse the laser on timescales less than 3 ns by turning the injection lock on/off and create arbitrary frequency-chirp shapes on the laser on the tens of nanosecond time scales. We have been able to use this pulsed frequency-chirped laser to control the excitation of a thermal Rb gas via rapid adiabatic passage.
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Acknowledgements
We would like to thank Phillip Gould, Jennifer Carini, Charles Rogers III, Andreas Karpf, and Martin Disla for useful discussions. We would also like to thank Horace McDonell and Adelphi University (and its programs Hire-a-Pathner and CSTEP) for providing funding.
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Kaufman, B., Paltoo, T., Grogan, T. et al. Pulsed, controlled, frequency-chirped laser light at GHz detunings for atomic physics experiments. Appl. Phys. B 123, 58 (2017). https://doi.org/10.1007/s00340-017-6649-3
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DOI: https://doi.org/10.1007/s00340-017-6649-3