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CIR & PIR Fibers
- Durable
- Ability to deliver high intensity laser power
- Various core diameter
- Protected by polymer coated metal armor
PRODUCT DESCRIPTION
Chalcogenide IR-Glass Fiber (CIR Fiber)
Chalcogenide Infra Red (CIR) glasses are the best As2S3-based material for fiber optics in the range of 1.5-6μm. CIR fibers transmit IR-radiation in the gap between silica fibers (0.2-2.4μm) and Polycrystalline Infra Red (PIR) fibers (4-18μm). CIR fiber is drawn in core/clad structure with double polymer coating and characterized by a low optical losses and high flexibility.
The innovative glass purification process provides the attenuation spectra free from OH absorption band at 3μm and thus it enables CIR fiber to be used for Er:YAG laser power delivery.
Features:
123• high transmittance from 1.5μm up to 6μm
123• suitable for Er:YAG - laser power delivery
123• optical losses 0.2 dB/m at 2-4μm
123• double polymer coating for high flexibility
123• durable cables with SMA-connectors
Applications
• Flexible delivery for Er:YAG - laser
• flexible IR-imaging systems
• remote non-contact pyrometry in the 200-600K range
• fiber probes for remote process IR - spectroscopy
Fiber specification
Transmission Range |
1.5 - 6μm |
Core/Clad Structure |
As2S3/As-S |
Core/Clad Diameter |
200-500/300-600μm |
Core Refractive Index |
2.4 |
Effective NA |
0.28 |
Protective Coating |
Double Polymer Jacket |
Ambient Temperature Range |
270 - 370 K |
CIR Infrared Optical Fiber Standard Cables
Chalcogenide Infra Red (CIR) (1.5 - 6μm) fiber is drawn in core/clad structure with double polymer coating and characterized by a low optical losses and high flexibility. Delivery is from stock or within few weeks ARO. All standard cables include PEEK-polymer protective jacket and SMA termination.
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The development of specialty fibers for the Mid-Infrared region has resulted in a unique product - Core/Clad Polycrystalline Infra-Red (PIR-) fibers. The PIR-fibers are non-toxic, very flexible, transparent across a broad spectral region4 -18μm and capable of operating over the wide temperature range of 4K up to 420K. They are manufactured in a core/clad structure of superior quality from pure AgCl: AgBr solid solution crystals using an innovative vacuum extrusion method. They possess by no aging effect compared to an alternative bare core fiber. The range of PIR-fiber cables are available with a durable PEEK polymer jacket and terminations using either an SMA - type connector with a Ti or polymer ferrule or special one, manufactured on customer request. A wide variety of different optical coupling units can also be designed & fabricated for specialized customer requirements.
Fiber Features:
123• high transmittance from 4μm up to 18μm 123• high flexibility and no toxicity 123• suitable for CO2 - laser power delivery up to 50W 123• low Attenuation at 10.6мm (0.1-0.5 dB/m) 123• fiber diameters from 0.3 to 1.0mm 123• fiber lengths up to 20m (for 0.5mm diameter) 123• no aging effect
Standard Fiber Specification:
PIR-fibers are protected by a loose PEEK-jacket (PolyEtherEtherKetone) to provide stiff, flexible and hermetic protection against mechanical, photoinduced and chemical damage over a wide temperature range up to 250°C.
Standard Cable termination with a special Ti-ferrule SMA-connector:123• for low power (spectroscopy & radiometry) applications; 123• for high laser power delivery - free standing fiber end ; 123• standard cable length - 1m & 2m.
PIR-fiber end-surface treatment:123• Cutting low cost, high performance - standard; 123• Polishing for special application, including AR-coating - on request; 123• SMART for reduced reflection of high CO2-laser intensity - on request.
Options123• accessory kits for remote spectroscopy with FTIR, QCL and TDL-spectrometers; 123• pig-tailing of IR-detectors: TE- & LN-cooled MCT, PbSe, thermopiles, etc.
Diverse Methods of AR-coating and SMART-treatment
Comparison of Standard and Spectral PIR-fibers
Applications123• Flexible delivery system for CO and CO2 laser; 123• Flexible IR-imaging systems; 123• Remote non-contact pyrometry in the 100-600K range; 123• Fiber probes for remote in-line, in-vivo and process IR - spectroscopy. |
Comparison of CIR- and PIR-Fibers |
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Typical transmission spectra of 1.5m long PIR-900/1000 fiber (red) versus CIR-750/850 fiber (blue) (includes reflection & coupling losses at fiber ends without AR coating and some absorption bands of atmospheric moisture, etc.)
Typical specification of CIR- and PIR-fibers
Comparison of PIR- and CIR-Fibers Transmission Spectra for 1.5m length
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