Littrow Prisms

Altos Photonics, Inc.

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Littrow Prisms are versatile optical elements that come in various configurations, including uncoated prisms used for dispersing light into a spectrum and aluminum-coated prisms that divert the beam at a 60-degree angle without inverting or reverting the image. These prisms are commonly used in laser cavities to tune the gain of the ...

Specifications
Dimension (A - Height):	22 mm
Dimrnsion (B - Length):	37.9 mm
Dimension (C - Width):	22 mm
Material:	BK7
Coating:	Al+SiO2

Data Sheet

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Littrow prisms are used in applications where a minimum deviation and a maximum dispersion of the incident beam are required. These prisms are typically made of UV fused silica and feature moderate loss for p-polarized beams. Thanks to these properties they are frequently used in laser cavities (to fine tune the laser by wavelength selection) and in spectrographs in conjunction with diffraction gratings. Because of their unique applications the accuracy of Littrow Prisms, which is defined by the precision of their angles, is an important consideration.

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Littrow Prisms

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