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Website: www.phosctech.com |
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 Optical Beamsplitters |
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Beamsplitters are used to split or combine beams of light. Plates are used for most laser applications as they exhibit low absorption. Cubes are a convenient, protected from for low power applications. The performance of a beamsplitter is mainly dependent on the coating specifications.
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Beamsplitter
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Spectrum
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Properties
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Beamsplitters
Plates
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Broadband Wavelength
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Beamsplitter plates can be used with high power lasers. When using beamsplitter plates, it is important to bear in mind that the two partial beams teavel different optical paths. The optical paths depend on the incident angle and the thickness of the plates.
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Single Wavelength
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Beamsplitters
Cube
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Broadband
Wavelength
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Compared with beamsplitter plates, beamsplitter cubes have the following advantages:
● Identical path lengths for both the reflected and the transmitted beams
● The transmitted beams is neither displaced nor deflected
● Stable and compact
● Easy operation
● Easy to mount/align
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Single Wavelength
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Penta
Beamsplitters
Cube
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Broadband
Wavelength
630-680nm
T/R: 20% / 80% ± 5%
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The penta beamsplitter is composed of a penta prism and a wedge. Like the beamsplitter cube, it has the following properties:
● The transmitted beam is neither displaced nor deflected
● Stable and compact
● Easy operation
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Polarizing Beamsplitters
Cube
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Broadband
Wavelength
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The prisms can be used as polarizers, beamsplitters or beam combiners. The output beam, which is parallel to the input beam, is called the p-polarized beam while the orthogonal output beam is defined as the s-polarized beam.
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Single Wavelength
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