OF6805 Hard Clad Silica Fiber (HCS Fiber)

Hard Clad Silica Fiber Description

Hard Clad Silica (HCS) Fiber is a specialized type of optical fiber featuring a hard polymer cladding over a silica core. Compared to conventional all-glass fibers, HCS fiber offers enhanced mechanical strength, abrasion resistance, and flexibility, making it highly durable and suitable for challenging environments.

Structure & Features:

· HCS fiber consists of a high-purity silica core and a UV-cured hard plastic cladding. Key characteristics include:

· Cladding Material: Hard plastic with a shear modulus ≥150 MPa

· Cladding Thickness: 10-20 μm

· Refractive Index Difference (Δ): 2.5%-7.5% between cladding and core

· Numerical Aperture (NA): 0.37

This structure combines the optical performance of silica with the mechanical resilience of a hard polymer coating, resulting in a robust yet flexible fiber.

Hard Clad Silica Fiber Applications

• Industrial: Factory automation, sensor networks, and machine vision systems
• Military: Rugged communication links and reconnaissance systems
• Telecommunications: Outdoor cabling, long-distance transmission, and harsh-environment networking

Hard Clad Silica Fiber Packaging

Our products are packaged in customized cartons of various sizes based on the material dimensions. Small items are securely packed in PP boxes, while larger items are placed in custom wooden crates. We ensure strict adherence to packaging customization and the use of appropriate cushioning materials to provide optimal protection during transportation.

Packaging: Carton, Wooden box, Paper barrel, Iron barrel, or Customized.

Structure of Optical Fiber

Core

• Position: Located at the center of the optical fiber.
• Material: High-purity SiO₂, doped with trace amounts of GeO₂ or P₂O₅ to increase the refractive index (n₁), enabling light signal transmission.

Cladding

• Position: Surrounds the core.
• Material: High-purity SiO₂, with trace dopants such as B₂O₃ used to slightly lower the refractive index (n₂) so that it is slightly less than that of the core. This ensures that the light signal remains confined within the core for transmission.

Coating Layer

• Position: The outermost layer of the optical fiber.
• Structure and Material: Includes a primary coating, a buffer layer, and a secondary coating.

a) The primary coating is typically made of acrylate, silicone, or silicone rubber.

b) The buffer layer generally consists of a high-performance filling gel (for water resistance).

c) The secondary coating is usually composed of high polymers such as polypropylene or nylon.

• Function: To protect the optical fiber from moisture and mechanical abrasion, while also enhancing its mechanical strength and flexibility. This extends the service life of the fiber.

Customization Options

We offer tailored core sizes, numerical apertures, coatings, and connector types to meet your specific system requirements. Custom-designed fiber-optic devices based on square core fibers are available upon request. Samples are for testing only.