Abstract
The stack-and-draw technique has been used to fabricate photonic crystal
fibers (PCFs) from four different types of soft glass, namely,
borosilicate, alkaline, lead, and tungsten-tellurite. The thermophysical
properties of the components must be matched in order to produce PCFs
from a combination of glass types. Lead/alkaline PCFs could be
fabricated without crystallization or fragility problems. Using
borosilicate glass alone, PCFs with up to five hollow periodic
structures could be formed. With tungsten-tellurite glass, a PCF with
one hollow periodic structure and a core doped with Er3+ ions have been
produced. The properties of this fiber confirm its potential application
in optical amplification or in other active devices.
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