Price of Distributed Fiber Bragg Gratings

Distributed Fiber Bragg Gratings typically range from $50 to several hundred dollars per meter, depending on specifications and application requirements.

Overview of Pricing

The cost of distributed FBGs varies widely based on several factors: Type of Grating: Uniform FBGs are generally less expensive than chirped or phase-shifted gratings, which require more precise fabrication and specialized UV inscription techniques. Wavelength and Bandwidth: FBGs designed for telecom wavelengths (e.g., 1550 nm) are more common and moderately priced, while specialty wavelengths (e.g., 2. 0 µm high-power FBGs) can significantly increase cost.

Length and Number of Gratings: Distributed FBGs with multiple gratings along a single fiber (FBG arrays) are more expensive due to the complexity of writing multiple precise gratings. Environmental Specifications: High-temperature or athermal packaged FBGs designed for harsh environments cost more than standard FBGs. Supplier and Volume: Prices vary by manufacturer and order quantity.

Bulk orders or standard components from suppliers like DK Photonics, Connet, or ITF Technologies may reduce per-unit cost.

Typical Price Ranges

Standard single FBG: $50–$150 per meter for basic telecom or sensing applications. Chirped or phase-shifted FBGs: $200–$500 per meter, depending on precision and wavelength range.

Distributed FB

G arrays: $300–$1000+ per meter, especially for multi-point sensing or high-power laser applications.

Additional Considerations

Customization: Custom gratings with specific reflection spectra, apodization, or high-power handling can increase costs. Integration: Some suppliers offer FBGs embedded in connectors or packaged modules, which adds to the price but simplifies deployment. Market Trends: Prices fluctuate based on demand in telecom, aerospace, and industrial sensing markets.

In summary, distributed FBGs are specialized optical components with prices influenced by type, wavelength, length, and environmental requirements, typically ranging from $50 to over $1000 per meter depending on complexity and application.