Description
The FBG Array from DK Photonics is a high-performance fiber optic sensing solution featuring multiple Bragg gratings inscribed along a single optical fiber. Designed for long-distance, multi-point monitoring applications, this array eliminates the need for fiber splicing, significantly enhancing system reliability and simplifying installation.
With customizable grating characteristics and spacing, the FBG Array offers flexibility for diverse sensing applications across industries. Each grating can be tailored for reflectivity, bandwidth, and length, with minimum spacing down to 10 mm and high spacing accuracy of ≤1 mm. Options for recoating materials, fiber type, and terminations (including FC/APC, FC/UPC, or E2000) allow seamless integration into a wide range of setups.
Engineered for high stability, the FBG Array operates across a broad temperature range of -40°C to +120°C, making it suitable for harsh environments. Whether used in aerospace engineering, structural health monitoring, or power grid strain analysis, this array ensures dependable, real-time sensing performance.
Fiber Bragg Grating Array
Specifications
| Center Wavelength Range: | 1510 – 1590 nm |
|---|---|
| FBG Length: | 15 mm, 10 mm, 5 mm, 3 mm |
| Reflectivity: | >90%, 30 - 99%, 30 - 70% |
| Wavelength Tolerance: | ±0.5 nm |
| Bandwidth (@ –3 DB): | ≤0.7 (3/5 mm), ≤0.3 (10/15 mm) |
| SLSR (Side Lobe Suppression): | ≥15 dB |
| Minimum Grating Spacing: | 10 mm |
| Spacing Accuracy: | ≤1 mm |
| Recoating Material: | Acrylate or Polyimide |
| Proof Test Strength: | ≥100 Kpsi |
| Fiber Type: | SMF-28e or Polyimide Fiber (OFS BF04446) |
| Fiber Termination: | Bare Fiber, FC/UPC, FC/APC, E2000 |
| Pigtail Length: | Customized |
| Operating Temperature: | -40 to +120 °C |
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Features
- No Splicing Points: Enhances system reliability and installation ease
- Customizable Grating Design: Tailored reflectivity, length, and spacing per application
- High Mechanical Strength: Withstands proof testing ≥100 Kpsi
- Versatile Fiber Types: SMF-28e or polyimide fiber options available
- Wide Operating Temperature Range: Stable performance from -40°C to +120°C
Applications
- Distributed Sensing Measurement: Ideal for monitoring strain, temperature, or pressure along structures
- Wavelength Reference Systems: Precise reference points for optical calibration setups
- Aerospace Engineering: Monitors structural health in aircraft and spacecraft systems
- Power Transmission Monitoring: Detects load changes and prevents failure in grid components
Frequently Asked Questions
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