# Gold-Coated Fiber Bragg Grating - FBG String - Fiber Optic Grating - Customized Wavelength Parameters - Factory Brand Price - DCYS - ofscn.net

**URL:** <https://forum.ofscn.net/t/gold-coated-fiber-bragg-grating-fbg-string-fiber-optic-grating-customized-wavelength-parameters-factory-brand-price-dcys-ofscn-net/990>\
**Category:** Official Tech Inquiry & Product Q&A\
**Created:** [March 6, 2026, 1:41pm UTC](https://forum.ofscn.net/t/gold-coated-fiber-bragg-grating-fbg-string-fiber-optic-grating-customized-wavelength-parameters-factory-brand-price-dcys-ofscn-net/990 "2026-03-06T13:41:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![blueman](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/b/a88e4f/32.png) [@blueman](https://forum.ofscn.net/u/blueman)\
**Post date:** [March 6, 2026, 1:41pm UTC](https://forum.ofscn.net/t/gold-coated-fiber-bragg-grating-fbg-string-fiber-optic-grating-customized-wavelength-parameters-factory-brand-price-dcys-ofscn-net/990/1 "2026-03-06T13:41:00Z")

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Iven | www.ofscn.net Last Updated: 07 August 2025

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

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This is a companion discussion topic for the original entry at [https://www.ofscn.net/fbg-products/gold-fbg.html](https://www.ofscn.net/fbg-products/gold-fbg.html)

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**Author:** ![OFSCN\_Tech\_Expert](https://forum.ofscn.net/user_avatar/forum.ofscn.net/ofscn_tech_expert/32/199_2.png) [@OFSCN\_Tech\_Expert](https://forum.ofscn.net/u/OFSCN_Tech_Expert)\
**Post date:** [March 6, 2026, 1:41pm UTC](https://forum.ofscn.net/t/gold-coated-fiber-bragg-grating-fbg-string-fiber-optic-grating-customized-wavelength-parameters-factory-brand-price-dcys-ofscn-net/990/2 "2026-03-06T13:41:06Z")

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Hello. This is the OFSCN EN Pre-sales Engineer. I see you have posted information regarding our gold-coated Fiber Bragg Gratings.

The [OFSCN® Gold-Coated Fiber Bragg Gratings / Fiber Bragg Grating Strings (Bare)](https://www.ofscn.net/fbg-products/gold-fbg.html) represent our high-end solution for extreme environments where standard polymer coatings would fail.

### Technical Overview

These sensors utilize [OFSCN® Gold-coated Optical Fiber](https://www.ofscn.org/optical-fibers/gold-coated.html) as the base material. The primary advantage of the gold coating is its ability to maintain structural integrity and protect the fiber at temperatures far exceeding the limits of Polyimide or Acrylate.

**Key Technical Specifications:**

- **Temperature Range:** -200°C to +700°C.
- **Corrosion Resistance:** Excellent resistance to chemical erosion, making it suitable for harsh industrial or downhole applications.
- **Wavelength Range:** 1510nm to 1605nm (Customizable).
- **Reflectivity:** ≥ 15dB (Standard), customizable based on requirements.
- **SLSR:** ≥ 15dB.

### Product Visuals

Below are the standard images for this product series:

 ![700-FBG](https://forum.ofscn.net/uploads/default/original/1X/4b275e620274435c6a4a16bf5112431ee8135f45.jpeg)

### Application Consultation

If you are considering these for a specific project, please note that gold-coated FBGs are typically used in ultra-high temperature sensing or in environments requiring high-strength metallic bonding (such as soldering the fiber directly to a substrate).

To provide a more accurate technical recommendation, could you clarify:

1. What is the maximum continuous operating temperature of your application?
2. Is the fiber intended to be embedded in a metal matrix or used as a bare sensing string?

For detailed technical parameters, you may refer to the official product page:  
[OFSCN® Gold-Coated Fiber Bragg Gratings / Fiber Bragg Grating Strings (Bare)](https://www.ofscn.net/fbg-products/gold-fbg.html)

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**Author:** ![blueman](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/b/a88e4f/32.png) [@blueman](https://forum.ofscn.net/u/blueman)\
**Post date:** [March 6, 2026, 1:41pm UTC](https://forum.ofscn.net/t/gold-coated-fiber-bragg-grating-fbg-string-fiber-optic-grating-customized-wavelength-parameters-factory-brand-price-dcys-ofscn-net/990/3 "2026-03-06T13:41:06Z")

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