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Transmission characteristics of a Raman-amplified atomic optical filter in rubidium at 780 nm
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Publication in Journal of Optical Technology
Wenjin Zhang, Yufeng Peng Transmission characteristics of a Raman-amplified atomic optical filter in rubidium at 780 nm (Характеристики пропускания рубидиевого атомного оптического фильтра на длине волны 780 нм, использующего рамановское усиление) [на англ. яз.] // Оптический журнал. 2014. Т. 81. № 4. С. 11–20.
Wenjin Zhang, Yufeng Peng Transmission characteristics of a Raman-amplified atomic optical filter in rubidium at 780 nm (Характеристики пропускания рубидиевого атомного оптического фильтра на длине волны 780 нм, использующего рамановское усиление) [in English] // Opticheskii Zhurnal. 2014. V. 81. № 4. P. 11–20.
Wenjin Zhang and Yufeng Peng, "Transmission characteristics of a Raman-amplified atomic optical filter in rubidium at 780 nm," Journal of Optical Technology. 81(4), 174-181 (2014). https://doi.org/10.1364/JOT.81.000174
The transmission characteristics of a Raman-amplified atomic filter that can be used to detect fairly weak signals in free-space quantum-key distribution or laser communications are analyzed and discussed in the coherent and incoherent pump fields respectively. The theoretical model for the calculation of the transmission characteristics of a ground-state Raman-amplified Faraday dispersion atomic optical filter based on Raman gain and Faraday rotation is presented. The results show that the filter in a coherent pump field can achieve higher transmission and larger tunability than that in an incoherent pump field due to elimination of pumping detuning. In addition, the filter has a large scale tunability over 3.5 GHz via the Faraday transmission peak adjusted while its bandwidth is only 66 MHz, which is useful for free-space laser communication and lidar systems.
atomic optical filter, Raman light amplification, Rubidium, Faraday dispersion, hyperfine structures
Acknowledgements:The authors would like to acknowledge the support from the National Natural Science Foundation of China (grant 61077037).
OCIS codes: 120.2440
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