主要特点：
在3 – 18μm范围内的高透射率
9 – 13 µm范围内的低光损耗约为0.2 – 0.3 dB / m
芯/包层结构的芯直径范围为240至860μm
老化速度慢
不吸水，无毒
规格：
| Parameters of standard Polycrystalline fibers | ||||
| Code | PIR240/300 | PIR400/500 | PIR600/700 | PIR900/1000 |
| Type | Step Index Multimode | Step Index Multimode | Step Index Multimode | Step Index Multimode |
| Core Dia., µm | 240±10 | 400±10 | 600±10 | 860±20 |
| Cladding Dia., µm | 300+0/-10 | 500+0/-15 | 700+0/-15 | 1000+0/-20 |
| Protective Jacket Dia., µm | no | no | no | no |
| NA | 0.35±0.05 | 0.35±0.05 | 0.35±0.05 | 0.35±0.05 |
| Min. bending Radius, mm | 45 | 75 | 100 | 150 |
| Specifications | |
| Core/cladding composition | AgCl:AgBr |
| Spectral Range | 3 – 18 μm |
| Core Refractive Index | 2.15 |
| Fresnel Reflection Losses | 25% |
| Attenuation at 10.6 µm | 0.2 – 0.4 dB/m |
| Effective Numerical Aperture NA | 0.35 +/- 0.05 |
| Melting Point | 410 °C |
| Operating Temperature | –273 to +140°C |
| Core/Clad Diameter (standard) | see Parameters of standard Polycrystalline fibers |
| Laser Damage Threshold for CW CO2laser | >12 kW/cm² |
| Tensile Strength | > 70 MPa |
| Minimum Bending Radius (fixed) | 5 x [Fiber Diameter] |
| Minimum Elastic Bending Radius | 150 x [Fiber Diameter] |
应用领域：
中红外光谱
灵活的红外高温计
灵活的红外成像系统
量子级联激光器的功率传输
CO和CO2激光器的功率传输