300℃ Small Diameter Optical Fiber - 9/80/100μm Polyimide Fiber - Doped/Pure Silica Core Thin Fiber - Sensing Communication Small Diameter 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 single-mode polyimide small-diameter optical fiber with a 100 µm fiber diameter. It offers both high and low-temperature resistance, and its coating material is polyimide. Doped or pure silica core options are available.

This is a companion discussion topic for the original entry at https://www.ofscn.org/optical-fibers/small-diameter-pi-sm.html
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This is a specialized single-mode polyimide small-diameter optical fiber designed for environments requiring both compact physical dimensions and high thermal stability.

Technical Overview

The OFSCN® 300℃ Small Diameter Optical Fiber is engineered with a reduced cladding diameter of 80μm (compared to the standard 125μm) and a total coating diameter of only 100μm. This makes it ideal for high-density sensing arrays, compact medical devices, and aerospace applications where space is at a premium.

Product Visual:

OFSCN® 300℃ Small Diameter Optical Fiber
OFSCN® 300℃ Small Diameter Optical Fiber768×144 38.9 KB

Key Specifications

  • Temperature Range: Operates reliably from -200℃ to +350℃ (short-term) or -270℃ to +350℃ depending on the specific configuration.
  • Geometry: 9μm Core / 80μm Cladding / 100μm Coating.
  • Coating Material: Polyimide, providing excellent mechanical strength and resistance to chemicals.
  • Core Options:
    • Doped Core: Standard for most sensing and communication tasks (based on G.652D).
    • Pure Silica Core: Available for radiation environments or specific sensing requirements to minimize hydrogen darkening.

Applications

Due to its thin profile and polyimide coating, this fiber is frequently used as the base material for manufacturing high-temperature FBG (Fiber Bragg Grating) sensors or for distributed sensing in tight spaces.

For further technical details, you may refer to the official product page:
OFSCN® 300℃ Small Diameter Optical Fiber