Rubidium vapor is loaded into hypocycloidal core shaped Kagome hollow-core photonic crystal fiber (HC-PCF) with the wall of its inner core coated with aluminosilicate ceramic (sol-gel). We show that the presence of Rb vapor is maintained for a longer duration when compared to uncoated Kagome HC-PCF. Rb vapor within the hollow-core of a sol-gel coated Kagome HC-PCF is preserved for over 500 h after the source of Rb is halted. And Rb vapor is detected in the sol-gel coated HC-PCF for more than 80 h after the background Rb vapor signal is no longer observed.
© 2014 IEEE
Original Manuscript: November 6, 2013
Manuscript Accepted: April 4, 2014
Published: April 9, 2014
T. D. Bradley, J. Jouin, J. J. McFerran, P. Thomas, F. Gerome, and F. Benabid, "Extended Duration of Rubidium Vapor in Aluminosilicate Ceramic Coated Hypocycloidal Core Kagome HC-PCF," J. Lightwave Technol. 32, 2486-2491 (2014)