Quartz Glass Laser Flow Tubes

Item Number:VY_Sample D5-2

We produce laser cavity filters according to the customer’s specifications, with single hole, double and triple holes, based on the different applications or properties.


  • Material: Quartz glass, fused silica, Cerium doped quartz, Europium Doped Quartz, Titanium doped quartz, Samarium doped quartz glass
  • Dimension: 3.00mm-380.00mmm
  • Tolerance: +/-0.1mm
  • Surface Accuracy: As requested
  • Surface Quality: 60/40
  • Clear Aperature: 95%
  • Coating: Optional


VY Optoelectronics offers standard and specific laser flow tubes that are used around laser lamps and rods in water cooled lamp pumped lasers. Simultaneously flow tubes protect the laser elements from undesired UV radiation and absorbing it as well as the emissions from the side of the rod, in this way enhancing the efficiency of the laser. 
Reflectors and flow tubes can be produced according to the customer’s specifications, with single hole, double and triple holes….based on the different applications or properties.

We manufacture laser cavity filters from the following materials:

  • Borosilicate glass
  • Syntetic fused silica
  • Fused quartz
  • Cerium doped quartz
  • Europium doped quartz
  • Ti doped quartz
  • Samarium doped quartz

The component Type can be different shape, such as: Reflectors, Lightguides, Specular Reflectors, Reflectors, Flowtubes, Tubes, Rods etc..

Typical Mechanical Property of Fused Quartz
Mechanical Property 力学性能
Dielectric Constant 介电常数 3.7-3.9
Dielectric absorption coefficient 介质的吸收系数 <4*104
Dielectric loss coefricient 介电损耗系数 <1*104
Mechanical Property 机械性能
Densiy 密度 2.203g/cm
Compressive Stength 抗压强度 >1100Mpa
Bending Stength 弯曲强度  67Mba
Tensile Stength 抗拉强度 48.3 Mpa
Poisson's Ratio 泊松比 0.14-0.17
Elasic Modulus 弹性系数 71700 Mpa
Shearing Modulus 刚性系数 31000 Mpa
Mohs Hardness 莫氏硬度 5.3-6.5 Mohs Scale)
Deformation Point 变形温度 1280
Specific Heat20-350℃)比热 670 J/kg
Thermal Conductivity(20℃)导热系数 1.4W/m
Refractive index 折射率 1.45845
Coefficient thermal 热膨胀系数 5.5*10-7cm/cm°C
Hot work temperature 热加工温度 1750 - 2050
The temperature for a short time 短期工作温度 1300
The temperature for a long time 1100
Resistivity 电阻率 7*10 7Ω/cm
Dielectric Strength 介电强度 250-400 Kv/cm
Dielectric Constant 介电常数 3.7-3.9
Dielectric Absorption Coefficient 介电吸收系数 <4*10 4

Main Features
1. The surface is fully glazed for maximum reflectivity and easy to clean.
2. The reflectivity reaches 97% at the wavelength of 600-1000nm.
3. The reflectance efficiency exceeds 95% in the 400-1200nm spectrum range.
4. The green body has proper porosity and high strength.

A short video to help you know our Laser Flow Tube better.

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