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IRF-S系列1.5-6.5μm硫化物短波红外光纤

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IRF-S Series Chalcogenide Mid-Wave Infrared (MWIR) Fiber (1.5 to 6.5µm)


IRF-S 100

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-S Series mid-wave infrared (MWIR) fiber, made from extra high purity chalcogenide glass As2S3, is specially designed and manufactured to generate and/or guide mid-infrared wavelengths from 1.5 to 6.5µm with high transmission efficiency and nonlinearities about 100 times that of silica glass fiber.

IRF-S-100 and IRF-S-200 multimode fibers have typical optical loss of 0.05dB@2.8µm and 0.08dB@4.8µm wavelength, which are the lowest loss in the market. The IRF-S-100 fiber was initially designed to use in high-power infrared countermeasure (IRCM) lasers for missile defense.

The new IRF-S-300 multimode fiber is specially designed to use with the erbium:YAG laser at 2.94µm.  The erbium: YAG laser, with its 2.94µm wavelength at the peak of water absorption, leads to less thermal damage in laser-treated skin.   With its optical loss of 0.3dB/m at 2.94µm, this fiber is ideal to use with epoxy-free high power connector for the fiber cable used with Erbium:YAG laser at 2.94µm.

IRF-S-5, IRF-S-6.5, IRF-S-7 and IRF-S-9 singlemode fibers have transmission range from 1.5-6.5µm and minimum transmission loss of approximately 0.1dB/m at 4.8µm.  Given their approximately 5, 6.5, 7 and 9µm core diameters and 0.3 numerical aperture, the step-index fibers are truly single-mode for wavelengths larger than their 1.988, 2.46, 2.930 and 3.560µm cutoffs.  For wavelengths shorter than the cutoffs and with proper coupling, the transmitted beam could remain single-mode (or slightly multimode) over short length of fiber (< 2 m) for their entire fiber transmission range.

IRF-S-50 multimode fiber is developed to use for the fabrication of mid-infrared fused combiners.  The 50/85 µm core/clad design is ideal for making 7x1 fiber combiners having our IRF-S-100 as the output fiber.  But the 50/80 µm core/clad structure will be too fragile to terminate with connectors and used as standalone fiber cable.

The fibers can be sold as bare fibers or cables terminated with connectors except IRF-S-5 and IRF-S-50.

The standard fiber cables are terminated with FC/PC, FC/APC or SMA905 connectors with stainless steel ferrules.  IRflex's FC/B® connector - the FC connector at Brewster Angle enables perfect coupling without reflection with polarized laser beam, is also available upon request.

The protective jacket can be stainless steel, stainless steel with PVC sheathing or clear FEP sheathing, PVDF andPVC.

Other different cable assembling configurations are offered upon request.


产品资料下载:IRF-S Series 1.5-6.5um Chalcogenide MWIR Fiber_IRflex Datasheet


规格参数

产品名称 : IRF-S系列1.5-6.5μm硫化物短波红外光纤
产品品牌 : IRFlex

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