Reflectors and flow tubes, filters for laser cavity

ARD Optics offers a wide range of flow tubes and reflectors for lasers.

Single and Multi-Hole Cavity Filters and Laser Flow Tubes

Our company 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. We manufacture laser flow tubes from the following materials:

  • Pyrex Glass
  • Borofloat 33
  • Fused Silica
  • Cerium Doped Fused Silica
  • Samarium Doped Glass S7005 (5%Sm), S7010 (10%Sm)

The materials are listed in accordance with their cost starting from the cheapest option.

Our specialists carry out all the stages of processing: cutting, drilling, grinding and polishing, keeping the precise parallelism of the holes and other tolerances.

Sizes: Inner Diameter: 2-40 mm,+/-0.05-0.1mm

Length: 10-130mm, +/-0.05-0.1mm

Parallelity of Holes: 0.05-0.1mm,

The laser flow tubes are designed and manufactured upon the customer’s request.

reflector flow tubes laser cavity filter


reflector flow tubes laser cavity filter
reflector flow tubes laser cavity filter

Reflectors for Laser Cavity

ARD Optics offers standard and specific laser reflectors that are used around laser lamps and rods in water cooled lamp pumped lasers. We manufacture reflectors from the following materials:

  • Pyrex Glass
  • Borofloat 33
  • Fused Silica
  • Cerium Doped Fused Silica
  • Samarium Doped Glass S7005 (5%Sm), S7010 (10%Sm)

These reflectors are the same flow tubes with their cross section which is usually of an elliptic or round in shape in accordance with the customer’s requirements. These flow tubes are coated with silver (high reflection Ag) and protected with several metallic layers.

ARD Optics can also produce such reflectors with the flow tube provided by the customer.

Sizes: Inner Diameter: 2-40 mm, +/-0.05-0.1mm

Length: 10-130mm, +/-0.05-0.1mm

Parallelity of Holes: 0.05-0.1mm,






Specular Silver Coated Reflectors for Diode Pumped Lasers

Specular reflectors for diode pumped lasers consist of Fused Silica or sapphire tube, the external surface of which is covered with silver (high reflection Ag) coating with protected layers. Several areas of this reflector are open as a window for diode pumping. We produce this kind of reflectors with window sizes and configuration in accordance with the customer’s requirements.

red tube

Diffusion Reflectors for Diode Pumped Lasers

We can also offer you reflectors (diffusion and specular) of different configuration for diode pumped lasers, that would ensure uniform pumping of laser elements.

For diffusion pumping reflectors we use a very interesting polymer material, which has good characteristics for reflectors:

  • Reflection coefficient in UV, VIS and NIR region is 99%.
  • long time stability temperature consistency,
  • stability to temperature -200C to +260C,
  • chemical stability and insoluble in water,
  • very good electrical isolating etc.

We produce two kinds of diffusion reflectors different shapes for diode pumped lasers in accordance with the customer’s requirements.

red tube