200℃ high temperature optical fiber - SM/MM polyimide optical fiber - Sensing/Communication Fiber Optic - Picture Parameters - Manufacturer Brand Price - DCYS - ofscn.org

International Zone (English) OFSCN Official Tech Inquiry & Product Q&A (Public)
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Iven | www.ofscn.org Last Updated: 13 February 2026

This product is a polyimide optical fiber with a medium-temperature polyimide coating. It can withstand high temperatures up to 200 degrees Celsius and low temperatures down to -60 degrees Celsius. It is available in single-mode or multi-mode configurations. For multi-mode fibers, the core diameter can be selected as 50/62.5 microns. The optical fiber core is either doped or pure silica.

This is a companion discussion topic for the original entry at https://www.ofscn.org/optical-fibers/pi-coated-sm-mm-200.html
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Regarding the technical specifications of the OFSCN® 200℃ Polyimide Optical Fiber, it is a high-performance fiber designed for sensing and communication in demanding environments.

Technical Analysis

This fiber utilizes a medium-temperature polyimide coating, which provides superior thermal stability compared to standard acrylate-coated fibers. It is particularly effective for Distributed Fiber Sensing (DTS/OFDR/BOTDA) and data transmission in industrial or aerospace environments where temperatures fluctuate between -60°C and +200°C.

Key Technical Parameters:

  • Fiber Types: Available in Single-mode (SM) based on G.652D or bend-insensitive G.657 standards, and Multi-mode (MM) with 50/125 or 62.5/125 configurations.
  • Geometric Dimensions: Standard cladding diameter of 125μm with a coating diameter of approximately 155μm (thin-profile design).
  • Core Material: Doped silica core is standard, while pure silica core is available for radiation-resistant applications.
  • Coating: Low-stress polyimide; optional carbon coating can be added to enhance hydrogen and moisture resistance.

Product Visual:

OFSCN-200-fiber
OFSCN-200-fiber768×144 46.7 KB

Related Applications

If your application requires additional mechanical protection, this fiber is used as the internal sensing element for the OFSCN® 200°C Distributed Fiber Temperature Sensor, which features a 0.9mm seamless stainless steel tube encapsulation.

For further technical details, you may refer to the official product page:
OFSCN® 200℃ Polyimide Optical Fiber (SM/MM)