Chalcogenide glass is based on the chalcogen
elements (sulfur, selenium and tellurium)
with the addition of other elements such as
arsenic, antimony, or germanium. It offers
promising properties such as transmission
in mid and far infrared regions of spectra,
lower values of phonon energies, high
refractive index and very large nonlinearities
as compared to silica. Chalcogenide glass fibers
are the ideal candidates for mid-infrared
applications that require
high power laser delivery, chemical sensing
thermal imaging and temperature monitoring.
IRflex’s IRF-Se Series long-wave infrared
(LWIR) fiber, made from extra high purity
chalcogenide glass As2Se3, is specially
designed and manufactured to generate
and/or guide mid-infrared wavelengths from
1.5 to 10μm with high transmission efficiency
and nonlinearities about 1000 times that of
silica glass fiber.
Applications：
Mid-IR laser beam delivery、IR spectroscopy
Chemical sensing、Scientific and medical
diagnostics IR-imaging system
Nonlinear supercontinuum generation
Benefits:
Low loss
Broad transmission range from 1.5 to 10μm
High power handling strength
High mechanical flexibility
