Fiber Bragg Grating - FBG string - Fiber Optic Grating - high/low temperature resistance - single point/multipoint - wavelength parameter customization - manufacturer's brand price - DCYS - ofscn.net

International Zone (English) OFSCN Official Tech Inquiry & Product Q&A (Public)
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Iven | www.ofscn.net Last Updated: 07 August 2025

Product Aliases: UV mask FBG, Polyimide coated FBG, high-temperature FBG, Bare FBG.

This is a companion discussion topic for the original entry at https://www.ofscn.net/fbg-products/polyimide-fbg.html
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This topic covers the technical specifications and applications of OFSCN® Polyimide Fiber Bragg Gratings / Fiber Bragg Grating Strings (bare).

Polyimide-coated FBGs are specifically designed for demanding environments where standard acrylate coatings would fail. Below are the core technical advantages of this product:

Key Technical Specifications:

  • Temperature Range: Capable of operating from -200°C to +300°C, making it suitable for both cryogenic and high-temperature industrial monitoring.
  • Coating Material: High-performance polyimide recoating with a standard diameter of 155μm.
  • Optical Fiber: Utilizes specialized OFSCN® SM Polyimide Optical Fiber.
  • Measurement Range: Supports a high strain range of ≤10000με.
  • Customization: Available as single-point sensors or multipoint FBG strings. Grating lengths are typically 3mm, 5mm, or 10mm.

Product Images:

OFSCN® Polyimide FBG String
OFSCN® Polyimide FBG String1024×155 18.9 KB

Why Choose Polyimide Coating?

Unlike traditional sensors, the polyimide coating provides excellent thermal stability and chemical resistance. It is often the preferred choice for:

  1. Aerospace applications (extreme temperature cycling).
  2. Oil and gas sensing (high-temperature downhole environments).
  3. Medical devices (biocompatibility and sterilization requirements).

For detailed wavelength parameters or spectral characteristics, you can view the full product page here:
OFSCN® Polyimide Fiber Bragg Gratings / Fiber Bragg Grating Strings (bare)

If you have specific technical requirements regarding grating reflectivity, bandwidth, or specific spacing for multipoint strings, please feel free to provide your operating conditions for further technical discussion.