An Ultraviolet Fiber Fabry-Perot Cavity for Florescence Collection of Trapped Ions

作者：Zhou, Kun; Cui, Jin-Ming; Huang, Yun-Feng^*; Wang, Zhao; Qian, Zhong-Hua; Wu, Qi-Ming; Wang, Jian; He, Ran; Lv, Wei-Min; Hu, Chang-Kang; Han, Yong-Jian^*; Li, Chuan-Feng^*; Guo, Guang-Can

来源：Chinese Physics Letters, 2017, 34(1): 013701.

DOI：10.1088/0256-307X/34/1/013701

• QUANTUM NETWORKS
• ENTANGLEMENT

We demonstrate a fiber Fabry-Perot cavity in the ultraviolet range, which covers the florescence wavelength for the P-2(1/2) to S-2(1/2) transition of Yb+ and is designed in the bad cavity limit for florescence collection. Benefiting from both the small cavity mode volume and the large atom dipole, a cavity with moderate finesse and high transmission still supports a good cooperativity, which is made and tested in experiment. Based on the measured experimental parameters, simulation performed on the cavity and ion shows a Purcell factor better than 2.5 and a single-mode fiber collection efficiency over 10%. This technology can support ultra-bright single photon sources based on trapped ions and can provide the possibility to link remote atoms as a quantum network.

• 出版日期2017-1
• 单位中国科学技术大学; 中国科学院