Gold-Coated Fiber Bragg Grating - Gold-Plated FBG Array - Fbg in Metal Optical Fiber

Product Aliases: Femtosecond laser FBG, metal-coated FBG, gold-coated FBG, ultra-high temperature FBG, corrosion-resistant FBG, high-temperature fiber optic grating.

This product is a customizable fiber bragg grating (FBG) or fiber bragg grating array written on gold-coated optical fibers. It can be purchased individually or as an accessory for the OFSCN® Series Fiber Bragg Grating Temperature Sensors (FBG Thermometers).

The parameters listed for the gold-plated fiber bragg  grating (FBG) are for reference only. The parameters may vary slightly when the FBG sensors are produced, and customization is available to meet specific user requirements.

Video demonstration of the physical appearance of FBG:

OFSCN® Gold-Coated FBG Parameter List

OFSCN® Gold-coated FBG Fiber Parameters:

Click here to see the parameters for available OFSCN® Gold-coated FBG fibers:

Gold-coated Optical Fiber - SM/MM/PM Gold-plated Optical Fiber - Metal Coated Sensing and Communication Fiber Optic

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Features of OFSCN® Gold-Coated Fiber Bragg Grating:

• Ultra-High Temperature Resistance: The gold coating can withstand temperatures of over 700℃, far exceeding conventional fiber coatings. This allows the FBG to operate stably for extended periods in extremely high-temperature environments, making it an ideal choice for high-temperature sensing applications.
• Excellent Corrosion Resistance: The gold coating provides superior chemical resistance, enabling stable operation in harsh chemical environments such as acidic, alkaline, or high-salinity conditions without performance degradation.
• High Mechanical Strength: While the gold coating is stripped for grating inscription, the fiber's intrinsic glass strength remains intact. The gold coating itself also offers some mechanical protection.
• Advanced Manufacturing Process: The femtosecond laser point-by-point writing technology ensures high precision and reliability, guaranteeing consistent product performance.
• Flexible Application: The customizable grating lengths of 2mm, 3mm, 4mm, 5mm, 6mm, and 8mm provide customers with more precise options to meet diverse measurement needs.

Possible Application Scenarios and Industries of OFSCN® Gold-Coated Fiber Bragg Grating:

Given its outstanding ultra-high temperature and corrosion resistance, this FBG/FBG array has broad prospects in various extreme-environment applications.

Application Scenarios Examples of OFSCN® Gold-Coated Fiber Bragg Grating:

• Packaged for Use: It can be used as the core sensing element in packaged ultra-high temperature or corrosion-resistant sensors for:
  • Aerospace: Monitoring temperature and strain in key components like rocket engines and turbines in ultra-high temperature environments such as combustion chambers.
  • Nuclear Industry: Monitoring parameters within reactors and other high-radiation, high-corrosion, and high-temperature environments.
  • Petrochemicals: Monitoring temperature and stress in pipes and reactors under high-temperature, high-pressure, and corrosive conditions.
• Used Directly Without Packaging: In laboratory or research settings, this FBG can be used directly for:
  • High-Temperature Material Testing: Directly measuring parameters like stress, strain, and displacement inside high-temperature furnaces and reactors for scientific research and experimental data collection.
• Extreme Environment Monitoring: Performing structural health monitoring directly in extremely corrosive or ultra-high temperature environments, such as those found in the chemical or metallurgical industries.