12 February 2011 Large-core photonic microcells for coherent optics and laser metrology
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Proceedings Volume 7949, Advances in Slow and Fast Light IV; 794906 (2011) https://doi.org/10.1117/12.881124
Event: SPIE OPTO, 2011, San Francisco, California, United States
A photonic microcell (PMC) is a length of gas-filled hollow core-photonic crystal fiber (HC-PCF) which is hermetically sealed at both ends by splicing to standard single mode fiber. We describe advances in the fabrication technique of PMCs which enable large core Kagome-lattice HC-PCFs to be integrated into PMC form. The modified fabrication technique uses fiber-tapering to accommodate the large dimensions of the fiber and enables low loss splices with single mode fiber by reducing mode field mismatch. Splice losses as low as 0.6 dB are achieved between 1-cell defect Kagome HC-PCF and single mode fiber. Relative to the previously reported PMCs, which were based on photonic bandgap HC-PCF, the present Kagome HC-PCF based PMC provides broad optical transmission, surface mode-free guidance and larger core at the cost of slightly increased fiber attenuation (~0.2 dB/m). Therefore, the integration of this fiber into PMC form opens up new applications for PMC-based devices. The advantage of the large core dimensions and surface mode free guidance for quantum optics in gas-filled HC-PCF are demonstrated by generation of narrow sub-Doppler features in an acetylenefilled large core PMC.
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N. V. Wheeler, N. V. Wheeler, M. D. W. Grogan, M. D. W. Grogan, Y. Y. Wang, Y. Y. Wang, D. F. Murphy, D. F. Murphy, T. A. Birks, T. A. Birks, F. Benabid, F. Benabid, } "Large-core photonic microcells for coherent optics and laser metrology", Proc. SPIE 7949, Advances in Slow and Fast Light IV, 794906 (12 February 2011); doi: 10.1117/12.881124; https://doi.org/10.1117/12.881124

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