A multi-component glass up-conversion white light optical fiber lighting device

Abstract

The invention discloses a multi-component glass up-conversion white light optical fiber lighting device, which comprises a 980nm pump laser, a 980nm laser light transmission optical fiber, an optical fiber splitting and coupling system, and a helically wound side-emitting multi-component glass optical fiber. The 980nm pump light is transmitted through the transmission fiber for a long distance, and then enters the two ends of the helically wound side-emitting multi-component glass fiber through the optical fiber splitting and coupling system. The optical fiber core is tellurate multi-component glass, and the cladding is multi-component glass uniformly doped with one or more rare earth ions as the luminescent center with tellurate as the matrix. When the 980nm pump light is transmitted through the tellurite glass core guided by the refractive index, it will leak uniformly to the cladding, thereby exciting the rare earth ions in the cladding multi-component glass, and realizing the upper energy level conversion luminescence. By adjusting the intensity of the pump light, the composition of the rare earth ions and the doping content, the emitted light can be turned into white light, so that the uniform output of white light can be achieved, and a comfortable and soft lighting effect can be achieved.

Description

technical field [0001] The invention relates to an optical fiber lighting device, in particular to a multi-component tellurate glass up-conversion light-emitting optical fiber capable of long-distance transmission of pump light to excite doped rare earth ions, and belongs to the technical field of optical fiber lighting. Background technique [0002] The side-emitting optical fiber can be used in the lighting of flammable, explosive and other places that require photoelectric separation, and this kind of lighting is not subject to electromagnetic interference. It can also be used in special places with electromagnetic shielding requirements such as nuclear magnetic resonance and radar control rooms. It can also perform highly personalized lighting, such as decoration, outline, etc., so the optical fiber lighting device has certain practical value. [0003] The side-emitting optical fiber is the optical fiber itself as a luminous body, which can form a flexible light strip. ...

AI Technical Summary

Problems solved by technology

However, due to environmental vibrations and other reasons, the core / cladding layer is easily separated at the junction, and the light scattering in the separated area is reduced, which will cause the appearance of so-called "dark defects", resulting in uneven light emission of the fiber

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