Abstract
The difficulty of fusion splicing hollow-core photonic bandgap fiber (PBGF) to conventional step index single mode fiber (SMF) has severely limited the implementation of PBGFs. To make PBGFs more functional we have developed a method for splicing a hollow-core PBGF to a SMF using a commercial arc splicer. A repeatable, robust, low-loss splice between the PBGF and SMF is demonstrated. By filling one end of the PBGF spliced to SMF with acetylene gas and performing saturation spectroscopy, we determine that this splice is useful for a PBGF cell.
Highlights
Photonic bandgap fibers (PBGF) are optical waveguides that will serve as a key technology to enable future advances in frequency metrology, spectroscopy, and quantum optics
Many applications of PBGF require the fabrication of a PBGF cell, in which a length of PGBF is filled with a gas or liquid and spliced to solid-core single-mode fiber on each end
PBGF have been sealed after being filled by acetylene gas [6], but this technique relies on the use of an expensive, filament-based fusion splicer
Summary
Photonic bandgap fibers (PBGF) are optical waveguides that will serve as a key technology to enable future advances in frequency metrology, spectroscopy, and quantum optics. Many applications of PBGF require the fabrication of a PBGF cell, in which a length of PGBF is filled with a gas or liquid and spliced to solid-core single-mode fiber on each end. This cell is doubly difficult to produce since 1) two low-loss splices between the SMF and PBGF fiber must be made and 2) at least one splice must be made while keeping the gas in the PBGF microstructures. PBGF have been sealed after being filled by acetylene gas [6], but this technique relies on the use of an expensive, filament-based fusion splicer. The performance of this fiber compares favorably with a commercially made spliced fiber
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