AI Article Synopsis
- Nanofiber Bragg cavities (NFBCs) are advanced microcavities made from optical tapered fiber, showing great potential for photonic quantum information technology due to their small size and high efficiency.
- The existing NFBCs had a quality (Q) factor around 250, which is thought to be limited by the manufacturing process.
- A new method using a focused helium ion beam has achieved NFBCs with a Q factor exceeding 4170, more than 16 times higher than those made with a focused gallium ion beam.
Article Abstract
Nanofiber Bragg cavities (NFBCs) are solid-state microcavities fabricated in an optical tapered fiber. NFBCs are promising candidates as a platform for photonic quantum information devices due to their small mode volume, ultra-high coupling efficiencies, and ultra-wide tunability. However, the quality (Q) factor has been limited to be approximately 250, which may be due to limitations in the fabrication process. Here we report high Q NFBCs fabricated using a focused helium ion beam. Whenan NFBC with grooves of 640 periods is fabricated, the Q factor is over 4170, which is more than 16 times larger than that previously fabricated using a focused gallium ion beam.
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| http://dx.doi.org/10.1364/OE.27.006792 | DOI Listing |
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