What is PMMA fiber?

PMMA Fiber

PMMA fiber, or Polymethyl Methacrylate fiber, is a type of optical fiber made from a transparent thermoplastic known as PMMA. This material, also referred to as acrylic glass or plexiglass, is widely used in fiber optics for its excellent light transmission properties and flexibility.

Key Properties

  • High transparency and clarity, allowing efficient light transmission.
  • Good resistance to UV light and weathering, making it suitable for outdoor applications.
  • Flexibility and ease of handling compared to glass fibers.
  • Lower cost compared to traditional glass optical fibers.


  • Decorative lighting and illumination.
  • Signage and display panels.
  • Medical devices, particularly in minimally invasive surgery as light guides.
  • Sensors and data communication for short distance transmission.

Advantages and Disadvantages

Advantages Disadvantages
Cost-effective compared to glass fibers. Lower temperature resistance than glass fibers.
High flexibility and ease of installation. Higher attenuation rates, limiting transmission distance.
Resistant to shattering. Susceptible to scratching and surface damage.

In summary, PMMA fiber offers a versatile and cost-effective solution for various optical applications, particularly where flexibility and resistance to breakage are crucial. However, its use is generally limited to applications requiring short-distance light transmission due to its higher attenuation rates compared to glass optical fibers.

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