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Laser Optical Filters And Coatings and Applications

  • Four Laser Wavelength Blocker With High Transmission Zones
Four Laser Wavelength Blocker With High Transmission Zones

Applications involving Lasers and Filters or Optical Coatings are widespread and diverse. This can range from relatively simple products such as Antireflection Coatings on windows or lenses to Multi-wavelength High Optical Density Blocking Filters. Other variations include Partial Reflectors, Beamsplitters, Bandpass Filters and Single Wavelength Blocking Filters.

A small example of common Laser types are HeNe (632.8nm) in the visible, NdYaG (1064nm) and Telecommunication (1310nm, 1550nm) in the NIR, HoYAG in the IR and supercontinuum which operate over visible and NIR regions.

It is a prerequisite that filters used in these applications are long life, shift free, temperature stable, particularly in high power or short pulse situations.

All of these Filters are hard, durable and environmentally stable and can therefore be produced in a variety of shapes and sizes. This final sizing step is carried out at Envin where finished filters are produced from 1mm square to >100mm diameter. Thickness can be as low as 0.2mm and special considerations such as flatness and parallelism are routinely catered for.

Detailed Optical performance measurements are made using the highest standard Spectrophotometers (Perkin Elmer Lambda 900 & 983G).

Envin is able to offer a complete service from Coating and Filter design to prototyping and full manufacture covering the Ultraviolet, Visible and Infrared regions. Custom products are a speciality of the company.

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Latest News

  • Oxygen sensors and analysers – when do you need them?

    28th January 2021
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    21st December 2020

Contact Information

Envin Scientific Limited,
Technology House,
Chowley Oak, Tattenhall
Chester, Cheshire
CH3 9GA

Tel: +44 (0)1829 771792
Fax: +44 (0)1829 771791

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