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| Property | Parameter | Description |
|---|---|---|
| Product Name | Optical Fiber for Distributed Temperature Sensing (DTS) | Single-mode / multimode sensing fiber designed for continuous temperature profiling along the fiber length |
| Fiber Type | Single-mode (SM) / Multimode (MM) / Bend-Insensitive | SM: ITU-T G.652D equivalent; MM: 50/125 µm or 62.5/125 µm graded-index; BI fiber for tight-bend installations |
| Standard Compliance | IEC 60793-2-50, ITU-T G.652D, IEC 60793-2-10, IEC 61757-2-2 | Compliant with international fiber optic and DTS performance standards |
| Core / Cladding Diameter | SM: 9/125 µm; MM: 50/125 µm or 62.5/125 µm | Tolerance: core ±0.5 µm, cladding ±1.0 µm per IEC 60793-1-20 |
| Coating Material | Dual-layer acrylate / Polyimide / PVDF / Carbon + Polyimide | Acrylate for standard use; Polyimide for high-temp up to 300 °C; Carbon-coated for hydrogen-darkening resistance |
| Coating Outer Diameter | 245 µm (acrylate); 155 µm (polyimide) | Tolerance ±5 µm; ensures compatibility with standard connectors and splice equipment |
| Attenuation | SM: ≤0.20 dB/km @ 1550 nm; MM: ≤0.8 dB/km @ 850 nm / ≤0.3 dB/km @ 1300 nm | Low attenuation ensures long sensing range; measured per IEC 60793-1-40 |
| Operating Temperature Range | Standard: -40 °C to +85 °C; High-temp (polyimide): -55 °C to +300 °C | Extended range versions available for downhole oil & gas and industrial furnace applications |
| Temperature Measurement Range | -200 °C to +700 °C (application-dependent) | Based on Raman backscatter DTS principle; accuracy ±1 °C typical |
| Sensing Range (Cable Length) | Up to 30 km per channel (single-ended); up to 60 km (double-ended) | Dependent on DTS interrogator unit; spatial resolution 0.25–1 m typical |
| Tensile Strength (Proof Test) | ≥100 kpsi (0.69 GPa) standard; ≥200 kpsi (1.38 GPa) available | Proof-tested per IEC 60793-1-30 to ensure zero-defect fiber delivery |
| Bend Performance | Macrobend loss: ≤0.1 dB @ 100 turns, R=30 mm (SM); BI: ≤0.03 dB @ R=7.5 mm | Measured per IEC 60793-1-47; bend-insensitive grade recommended for conduit and armored cable installations |
| Application | Oil & gas downhole monitoring, pipeline leak detection, power cable monitoring, tunnel fire detection, geothermal sensing | Suitable for both surface and subsurface DTS deployments in harsh environments |
| Certification | RoHS, REACH, UL, CE, ISO 9001:2015 | Third-party certified; material safety data sheets (MSDS) available upon request |
| Packaging | Wooden drum / plastic reel: 1 km, 2 km, 4 km, 6 km, 10 km per reel | Sealed with moisture-barrier wrap; custom reel lengths available for project-specific requirements |
| MOQ | 1 km (standard stock); 10 km (custom coating or specialty grade) | OEM and project bulk orders accepted; lead time 2–6 weeks for specialty fiber |
Initial Coating Query Caused Delay — Resolved Professionally
We ordered 12 km of polyimide-coated DTS fiber for a high-temperature desert pipeline application (operating range up to +250 °C). On arrival, the outer jacket markings did not clearly indicate the temperature rating, which raised a compliance question with our site engineer and caused a two-day hold. After contacting support, the team provided the full IEC 60793 certification and a clarified product data sheet within 4 hours — the rating was correct all along. The fiber itself performed to spec: attenuation ≤0.20 dB/km at 1,550 nm, tensile load confirmed at 2,700 N. Issue was resolved, and we have since placed a follow-up order.
We ordered 12 km of polyimide-coated DTS fiber for a high-temperature desert pipeline application (operating range up to +250 °C). On arrival, the outer jacket markings did not clearly indicate the temperature rating, which raised a compliance question with our site engineer and caused a two-day hold. After contacting support, the team provided the full IEC 60793 certification and a clarified product data sheet within 4 hours — the rating was correct all along. The fiber itself performed to spec: attenuation ≤0.20 dB/km at 1,550 nm, tensile load confirmed at 2,700 N. Issue was resolved, and we have since placed a follow-up order.
