全光栅光纤(AGF®)是包含了紧密排列的低反射率(R<0.1%)拉丝塔光栅(DTG®)的光纤。光栅之间的距离可缩小至10mm。可选择光纤布拉格光栅(FBG)的长度,使整段光纤的光栅覆盖率超过95%。该光纤被设计应用于光频域反射计(OFDR)系统。该系统可在一个大的应力或温度链光纤上快速而精确地定位至几毫米的位置。
低弯曲损耗光纤LBL-1550-125的包层直径为125μm,同时针对1550nm波长窗口的操作进行了优化。对玻璃材料的组成成分进行了调配,使光纤在较小弯曲直径下依然能够保持良好的信号传输。
低衰减光纤LAL-1550-125的包层直径为125μm,同时针对1550nm波长窗口的操作进行了优化。对玻璃材料的组成成分进行了调配,使光纤在较小弯曲直径及小的衰减下依然能够保持良好的信号传输。
低弯曲损耗光纤LBL-1550-125的包层直径为80μm,同时针对1550nm波长窗口的操作进行了优化。对玻璃材料的组成成分进行了调配,使光纤在较小弯曲直径下依然能够保持良好的信号传输。
Parameter | AGF-LBL-1550-125 | AGF-LAL-1550 | AGF-LBL-1550-80 |
Reflectivity (for grating length of 8mm) | < 0.1% | ||
Centre wavelength | 1510–1590 nm | ||
Absolute wavelength accuracy1 | ≤ 0.5 nm | ||
DTG® length | 1–10 mm | ||
Attenuation @ 1550 nm | < 8.6 dB/km | < 1 dB/km | < 8.6 dB/km |
Mode Field Diameter (MFD) @ 1550 nm | 6 μm (typical) | 7.8 μm (typical) | 6 μm (typical) |
Numerical Aperture (NA) | 0.26 (typical) | 0.14 (typical) | 0.26 (typical) |
Cladding diameter | 125 μm ± 1 μm | 80 μm ± 1 μm | |
Coating type2 | ORMOCER®/ORMOCER®-T / One layer Acrylate | ||
Coated fibre diameter | 195 μm (typical) | 120 μm (typical) | |
Tensile load at break3 | > 50 N (corresponds to > 5% strain) | > 20 N (corresponds to > 5% strain) | |
Temperature sensitivity4 (formula Δλ/(λ ⋅ ΔT)) | 6.5 K-1 ⋅ 10-6 (typical) | ||
Strain sensitivity1 (formula: Δλ/(λ ⋅ Δε)) | 7.8 με-1 ⋅ 10-7 (typical) | ||
Operational temperature range5 | -200–200°C for ORMOCER® -20–200°C for ORMOCER®-T -20–90°C for One layer Acrylate |
1 measured at room temperature
2 Ormocer® is mainly applied for strain measurements while Ormocer®-T is recommended for temperature measurements.
3 According to IEC-60793-1-31 using a constant displacement of 30mm/minute.
4 measured between 0°C and 70°C
5 temperature range is dependent on exposure time