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BS2000-16000 Beamsplitter

1. Definition and Principle

A beamsplitter acts as an optical device that divides an entering light beam into two or more paths heading in distinct directions. Its basic operation depends on light’s interference and reflection qualities, created by placing an exact thin film layer onto the optical base material. As a result, this method permits controlled division of light according to its wavelength, polarization condition, or strength.

2. Key Parameters and Features

  1. Splitting Ratio

This describes the power sharing between the transmitted and reflected portions of light, usually in forms like 50:50 or 70:30. Furthermore, it allows adaptation to meet particular needs in applications.

  1. Operating Wavelength Range

It refers to the color spectrum where the beamsplitter works reliably, and therefore it needs to correspond with the light source of the entire system.

  1. Polarization Dependency

Certain beamsplitters respond to the polarization of incoming light, so they can be made into polarization beamsplitters or versions that do not depend on polarization.

  1. Angle of Incidence Range

This covers the entry angles at which the beamsplitter functions correctly. In addition, moving away from the intended angle could influence the splitting ratio along with transmission performance.

  1. Surface Quality and Flatness

It encompasses the evenness of the surface and its levelness, which in turn directly influence the optical system’s performance and minimize energy waste.

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3. Applications

Beamsplitters appear in numerous optical devices, for example:

  • Raman Spectrometers: They separate Rayleigh scattering from Raman signals effectively.
  • Michelson Interferometers, Confocal Microscopes: These employ them for dividing and merging optical paths.

4. Materials and Structure

Standard base materials feature optical glass, fused silica, calcium fluoride, and zinc selenide, picked to suit the working wavelength and output standards. The film layer generally includes stacked dielectric films or combined metal-dielectric layers, crafted to deliver targeted splitting results. Additionally, some beamsplitters incorporate joined or air-spaced designs to enhance efficiency or fit particular settings.

5. Usage and Environmental Considerations

  1. Incident Angle: Maintaining the planned range of entry angles proves essential, because it helps prevent shifts in the splitting ratio and transmission effectiveness.
  2. Temperature Effects: Shifts in temperature might change the film’s refractive index and depth, thereby possibly leading to changes in splitting traits.
  3. Cleaning and Maintenance: Prevent buildup from oils and particles; rather, employ dedicated cleaning items and fluids to avoid harming the film.
  4. Storage Environment: Keep it in a dry space without corrosive gases, and moreover, seal it against dampness for prolonged periods.

6. Customization and Services

We deliver adapted beamsplitter choices aligned with client specifications, such as:

  • Defined splitting ratios and wavelength bands
  • Polarization management and non-polarized arrangements
  • Assorted measurements, outlines, and connection matches
  • Coatings resistant to high-power lasers
  • Assistance with design reviews, sample delivery, and testing for performance

Under our guiding principle of “Integrity, Technology, and Customer First,” we pledge to supply durable, trustworthy beamsplitter goods and skilled optical guidance to customers across the globe.

Substrate: ZnSe    HT area:2000-16000nm     Tavg: 50±20%

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