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arXiv · 2601.20098

Fabrication of high-Q defect-free optical nanofiber photonic crystal resonators

Tomofumi Tanaka·Takahiro Suzuki·Owen Mao·Samuel K. Ruddell·Karen E. Webb·Takao Aoki
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Abstract

We demonstrate the fabrication of defect-free optical-nanofiber photonic-crystal Fabry-Perot resonators with quality factors exceeding 10^7 using single-shot femtosecond laser ablation. An investigation of the nonlinear optical properties reveals that thermo-optic effects dominate within the entire cavity bandwidth, even when interrogating with pulses one order of magnitude shorter than the 6.6 us thermal cutoff time. The combination of high-Q and small mode volume of these resonators could facilitate the creation of high-speed quantum nodes for cavity QED based quantum computing and networking, as well as low-power in-line fiber optical switches.

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Tomofumi Tanaka, Takahiro Suzuki, Owen Mao, Samuel K. Ruddell, Karen E. Webb, Takao Aoki. 2026-01-27. Fabrication of high-Q defect-free optical nanofiber photonic crystal resonators. https://arxiv.org/abs/2601.20098

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