H

Hydrogen resistant fibers can withstand hydrogen-rich environments whilst maintaining a high level of optical performance.

There are two fundamental design optimisations that are harnessed to manufacture hydrogen resistant fibers:

1. Carbon coating
2. Pure silica core matrix (germanium-free core design)

The carbon coating facilitates the hydrogen resistance of the fiber by acting as a hermetic seal and thereby preventing hydrogen ingress up to 150°C. By behaving as a barrier to carbon, hydrogen darkening of the fiber cannot occur.

Even with a carbon coating, beyond 150°C it is possible for hydrogen to enter the fiber and so extra precautions should be taken in terms of the fiber design. By removing germanium from the core matrix, any hydrogen within a pure silica core fiber cannot bind with germanium-associated defect sites. The prevention of such irreversible bonds ensures that the transmission of the fiber is maintained to a high level.

Related Products: Graded Index MM Carbon and High Temperature Acrylate Coated Fiber, Graded Index MM Carbon and Polyimide Coated Fiber, Graded Index Multimode Pure Silica Core Fiber, Pure Silica Core PM Fiber, Pure Silica Core SM Carbon and Acrylate Coated Fiber, Pure Silica Core SM Carbon and High Temperature Acrylate Coated Fiber, Pure Silica Core SM Carbon and Polyimide Coated Fiber, Pure Silica Core SM Fiber, Pure Silica Core SM High Temperature Acrylate Coated Fiber, Pure Silica Core SM Polyimide Coated Fiber, Step Index High NA Multimode Pure Silica Core Fiber, Step Index MM Pure Silica Core Fiber, Step Index Multimode Pure Silica Core Fiber