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The Japan Society of Applied Physics

Toward the realization of photonic quantum devices using a Nanofiber Bragg Cavity

Hideaki Takashima, Andreas Wolfgang Schell, Shinjiro Fujita, Atsushi Fukuda, Yasuko Oe, Syunya Kamioka, Masazumi Fujiwara, Shigeki Takeuchi

Published Jul 22, 2016• 0 citations
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Efficient coupling of photons emitted from single light emitters into the single guided mode of an optical fiber is important to realize photonic quantum network devices [1], such as single photon sources [2] and quantum phase gates [3]. For this purpose, we have developed nanofiber Bragg cavities (NFBCs) and observed the enhanced photon emission from the single light emitter [4]. Here, we report the development of the NFBC with the Q-factor of 1560, which is about 5 times larger than our previous NFBC fabricated by a gallium focused ion beam (FIB) milling system [4]. According to numerical simulation, the NFBC with such high-ß factor can be realized Purcell factor of about 18 and the coupling efficiency of about 80 %.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 1, 2017•0 citations
Efficient coupling of photons emitted from single light emitters into the single guided mode of an optical fiber is important to realize photonic quantum network devices [1], such as single photon sources [2] and quantum phase gates [3]. For this purpose, we have developed nanofiber Bragg cavities (NFBCs) and observed the enhanced photon emission from the single light emitter [4]. Here, we report the development of the NFBC with the Q-factor of 1560, which is about 5 times larger than our previous NFBC fabricated by a gallium focused ion beam (FIB) milling system [4]. According to numerical simulation, the NFBC with such high-ß factor can be realized Purcell factor of about 18 and the coupling efficiency of about 80 %.