Sapphire fiber diameter 75-500μm LHPG method can be used for sapphire fiber high temperature sensor

Short Description:

Sapphire fiber, that is, single crystal alumina (Al2O3) fiber, is a kind of optical fiber material with high mechanical strength, chemical corrosion resistance and good thermal conductivity. Its melting point is as high as 2072℃, the transmittance range is 0.146.0μm, and the optical transmittance is very high in the band of 3.05.0μm. Sapphire fiber not only has the excellent characteristics of sapphire, but also has the characteristics of optical waveguide, which is very suitable for fiber high temperature sensing and chemical sensing.

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Features and Benefits

1.High melting point: The melting point of sapphire fiber is as high as 2072℃, which makes it stable in high temperature environment.

2.Chemical corrosion resistance: sapphire fiber has excellent chemical inertness and can resist the erosion of a variety of chemical substances.

3.High hardness and friction resistance: the hardness of sapphire is second only to diamond, so sapphire fiber has high hardness and wear resistance.

4.High energy transmission: Sapphire fiber can ensure high energy transmission, while not losing the flexibility of the fiber.

5. Good optical performance: It has good transmittance in the near infrared band, and the loss mainly comes from the scattering caused by crystal defects existing inside or on the surface of the fiber.

Preparation process

Sapphire fiber is mainly prepared by laser heating base method (LHPG). In this method, sapphire raw material is heated by laser, which is melted and pulled to make optical fiber. In addition, there is the use of fiber core rod, sapphire glass tube and outer layer combination preparation of sapphire fiber process, this method can solve the whole body material is sapphire glass is too brittle and can not achieve long-distance drawing problems, while effectively reduce the Young's modulus of sapphire crystal fiber, greatly increase the flexibility of fiber, to achieve large length sapphire fiber mass production.

Fiber type

1.Standard sapphire fiber: The diameter range is usually between 75 and 500μm, and the length varies according to the diameter.

2.Conical sapphire fiber: The taper increases the fiber at the end, ensuring high throughput without sacrificing its flexibility in energy transfer and spectral applications.

Main application areas

1.High temperature fiber sensor: The high temperature stability of sapphire fiber makes it widely used in the field of high temperature sensing, such as high temperature measurement in metallurgy, chemical industry, heat treatment and other industries.

2.Laser energy transfer: High energy transmission characteristics make sapphire fiber have potential in the field of laser transmission and laser processing.

3.Scientific research and medical treatment: Its excellent physical and chemical properties also make it used in scientific research and medical fields, such as biomedical imaging.

Parameter

Parameter	Description
Diameter	65um
Numerical Aperture	0.2
Wavelength Range	200nm - 2000nm
Attenuation/ Loss	0.5 dB/m
Maximum Power Handling	1w
Thermal Conductivity	35 W/(m·K)

XKH has a team of leading designers and engineers with deep expertise and rich practical experience to accurately capture the unique needs of customers, from the length, diameter and numerical aperture of the fiber to special optical performance requirements, which can be customized. XKH uses advanced computational simulation software to optimize the design scheme many times to ensure that each sapphire fiber can accurately match the actual application scenario of customers, and achieve the best balance between performance and cost.