Specialized Fiber-Optic Sensing Cables
Cable structures engineered to transfer strain, temperature or vibration into the sensing fiber while protecting the optical path in field installations.
Product Models
Comprehensive range of special sensing cables for every monitoring application




RS-CABLE-S1
Internal Fixed-Point Strain Cable
Internal fixed-point UW-FBG® strain sensing cable with 0.9mm tight-buffered fiber. Metal armored and braided construction for excellent mechanical protection.
- Fiber Type0.9mm tight-buffered
- Reflectivity0.01%~0.1%
- Grating Spacing0.5/1/2/5 m
- Strain Range≥12000 με
- Tensile≥5 N
RS-CABLE-S2
External Fixed-Point Strain Cable
External fixed-point UW-FBG® strain sensing cable with unique mold-pressed anchor rings. Enhanced fiber-sheath mechanical transfer efficiency.
- Fiber Type0.9mm tight-buffered
- Reflectivity0.01%~0.1%
- Grating Spacing0.5/1/2/5 m
- Strain Range≥12000 με
- Tensile≥100 N
RS-CABLE-S3
Pre-Stressed Strain Cable
Pre-stressed internal fixed-point UW-FBG® strain sensing cable with ~3000 με pre-load. No initial tension required, zero dead zone axial strain sensing.
- Pre-Stress~3000 με
- Reflectivity0.01%~0.1%
- Grating Spacing0.5/1/2/5 m
- Strain Range≥12000 με
- Tensile≥200 N
RS-CABLE-S4
Distributed Strain Cable
Fully distributed UW-FBG® strain sensing cable with 1.0mm FRP grating array and steel rope core. High tensile strength, excellent strain transfer efficiency.
- Fiber Type1.0mm FRP array
- CoreSteel rope
- Grating Spacing0.2/0.5/1/2/5 m
- Strain Range≥12000 με
- Tensile≥1500 N


RS-CABLE-T1
Stainless Steel Temp Cable
Stainless steel encapsulated UW-FBG® temperature sensing cable in 1.8mm/3.0mm sizes. Kevlar/fiber + steel tube + stainless steel braid construction.
- Diameters1.8mm / 3.0mm
- Temp Sensitivity10.02 pm/°C
- Linear Range>0.999
- Tensile≥1000 N
- Temp Range-20°C ~ 90°C
RS-CABLE-T2
Armored Temp Cable
Steel-reinforced UW-FBG® temperature sensing cable. Bare fiber + PBT + metal braid/steel rope + jacket construction for enhanced tensile strength.
- Diameters2mm / 3mm / 5mm
- Temp Sensitivity10.02 pm/°C
- Linear Range>0.999
- Tensile≥200 N
- Temp Range-20°C ~ 90°C



RS-CABLE-D1
Buried Vibration Cable
Buried micro-vibration (DAS) sensing cable. Bare fiber + PBT + steel rope + jacket construction with bandwidth >5nm@3dB gratings for enhanced signal strength.
- Grating Bandwidth≥4.9~22 nm
- Grating Spacing5m (custom)
- Temp Sensitivity10.02 pm/°C
- Tensile≥1000 N
- Diameter3.0mm
RS-CABLE-D2
High Sensitivity Vibration Cable
High sensitivity UW-FBG® vibration sensing cable with spiral armor. Reduced sheath structure for enhanced sensitivity. Easy installation on structure surfaces.
- Grating Bandwidth≥22 nm
- Grating Spacing5m (custom)
- Temp Sensitivity10.02 pm/°C
- Tensile≥100 N
- Diameter3.0mm
RS-CABLE-D3
Hybrid Strain + Vibration Cable
Composite sensing cable with both vibration and strain fiber optic elements. Flat structure with central vibration grating array and side FRP strain fiber.
- Vibration Bandwidth≥22 nm
- Strain FiberFRP
- Temp Sensitivity10.02 pm/°C
- Tensile≥1400 N
- Dimensions3.5×7.5×9.0mm
Cable Selection Guide
How to choose the right sensing cable for your monitoring application
Need help selecting a cable? Contact our engineering team for application-specific recommendations.
Technical Specifications
Complete specifications for all special sensing cable models
| Parameter | G.657A2 | G.652D |
|---|---|---|
| Center Wavelength | 1528 nm ~ 1568 nm | |
| Wavelength Accuracy | ±0.5 nm | |
| Reflectivity | 0.01% ~ 0.1% | |
| Bandwidth @-3dB | ≤0.30 nm | |
| Side Mode Suppression | ≥15 dB | |
| Grating Spacing | 0.5/1/2/5 m (custom) | |
| Cable Diameter | 3.0 mm | |
| Tensile Strength | ≥5 N | |
| Strain Range | ≥12000 με | |
| Operating Temperature | -20°C ~ 90°C | |
| Parameter | G.657A2 | G.652D |
|---|---|---|
| Center Wavelength | 1528 nm ~ 1568 nm | |
| Wavelength Accuracy | ±0.5 nm | |
| Reflectivity | 0.01% ~ 0.1% | |
| Bandwidth @-3dB | ≤0.30 nm | |
| Grating Spacing | 0.5/1/2/5 m (custom) | |
| Cable Diameter | 5.0 mm (Node 10mm) | |
| Tensile Strength | ≥100 N | |
| Strain Range | ≥12000 με | |
| Operating Temperature | -20°C ~ 90°C | |
| Parameter | G.657A2 | G.652D |
|---|---|---|
| Center Wavelength | 1528 nm ~ 1568 nm | |
| Reflectivity | 0.01% ~ 0.1% | |
| Pre-Stress Level | ~3000 με | |
| Grating Spacing | 0.5/1/2/5 m (custom) | |
| Cable Diameter | 5.0 mm | |
| Tensile Strength | ≥200 N | |
| Strain Range | ≥12000 με | |
| Operating Temperature | -20°C ~ 90°C | |
| Parameter | G.657A2 | G.652D |
|---|---|---|
| Center Wavelength | 1528 nm ~ 1568 nm | |
| Reflectivity | 0.01% ~ 0.1% | |
| Grating Spacing | 0.2/0.5/1/2/5 m (custom) | |
| Cable Diameter | 5.0 mm | |
| Tensile Strength | ≥1500 N | |
| Strain Range | ≥12000 με | |
| Operating Temperature | -20°C ~ 90°C | |
| Parameter | Specification |
|---|---|
| Center Wavelength | 1528 nm ~ 1568 nm |
| Reflectivity | 0.01% ~ 0.1% |
| Cable Diameter | 1.8mm (Steel Tube) / 3.0mm (Armored) |
| Tensile (Steel Tube) | ≥20 N |
| Tensile (Stranded) | ≥1000 N |
| Temperature Sensitivity | 10.02 pm/°C |
| Linear Range | >0.999 |
| Operating Temperature | -20°C ~ 90°C |
| Parameter | Specification |
|---|---|
| Center Wavelength | 1528 nm ~ 1568 nm |
| Reflectivity | 0.01% ~ 0.1% |
| Cable Diameter | 3.0 mm (PBT + Braided) |
| Tensile Strength | ≥200 N |
| Temperature Sensitivity | 10.02 pm/°C |
| Linear Range | >0.999 |
| Operating Temperature | -20°C ~ 90°C |
| Parameter | G.657A2 | G.652D |
|---|---|---|
| Center Wavelength | 1550.12 nm | |
| Bandwidth @-3dB | ≥22 nm | ≥4.9 nm |
| Grating Spacing | 5 m (customizable) | |
| Cable Diameter | 3.0 mm | |
| Tensile Strength | ≥1000 N | |
| Temperature Sensitivity | 10.02 pm/°C | |
| Operating Temperature | -20°C ~ 90°C | |
| Parameter | G.657A2 | G.652D |
|---|---|---|
| Center Wavelength | 1550.12 nm | |
| Bandwidth @-3dB | ≥22 nm | ≥4.9 nm |
| Grating Spacing | 5 m (customizable) | |
| Cable Diameter | 3.0 mm | |
| Tensile Strength | ≥100 N | |
| Operating Temperature | -20°C ~ 90°C | |
| Parameter | Vibration Fiber | Strain Fiber |
|---|---|---|
| Center Wavelength | 1550.12 nm | 1528~1568 nm |
| Bandwidth @-3dB | ≥22 nm | ≤0.30 nm |
| Grating Spacing | 5 m | 0.5/1/2/5 m |
| Cable Dimensions | 3.5×7.5×9.0 mm | |
| Tensile Strength | ≥1400 N | |
| Operating Temperature | -20°C ~ 70°C | |
Our Solutions for Your Company
Special sensing cables are essential for comprehensive infrastructure monitoring. Explore how we serve your industry.
Civil Infrastructure
Bridges, highways, tunnels, and dams — long-term structural health monitoring with distributed strain and temperature sensing.
Energy & Power
Power cables, wind turbines, and oil & gas pipelines — continuous monitoring to prevent failures and optimize operations.
Industrial & Manufacturing
Production equipment, industrial pipelines, and facility monitoring — precision measurement for process optimization and safety.
Railway & Transportation
High-speed rail, metro systems, and rail bridges — distributed acoustic sensing for train tracking and infrastructure safety.

From optical response to verified measurement
Product performance is evaluated as a complete sensing chain: optical response, signal acquisition, demodulation and repeatable engineering output.
Project planning
Ready to Build Your Sensing System?
Talk to our engineers to design a UW-FBG sensing solution tailored to your application.