Infrared light transmitting fiber and process for producing the same
AssigneeSumitomo Electric Industries, Ltd.
InventorsKazuhito Murakami, Kenichi Takahashi
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Abstract
An infrared light transmitting optical fiber and a process for producing the same are disclosed. The infrared light transmitting optical fiber is produced by a process comprising preparing a core crystalline fiber having a high melting point and a high refractive index, forming around the core fiber a continuous layer of cladding crystal having a low melting point and a low refractive index, and subsequently forming a protective layer on the resulting step-index fiber.
Claims13
An infrared light transmitting optical fiber having a protective coating formed in intimate contact around a step-index fiber having a core and a cladding wherein the core is an infrared light transmitting crystalline material and the cladding is an infrared light transmitting crystalline material,
- wherein the core material has a higher melting point and a higher refractive index than the cladding material.
A process for producing an infrared light transmitting optical fiber which comprises preparing a core crystalline fiber, forming around the core fiber a continuous layer of cladding crystal, and subsequently forming a protective layer on the resulting step-index fiber,
- wherein the core material has a higher melting point and a higher refractive index than the cladding material.
Dependencies are inferred from the claim text.