기능

• A plate-type polarization beam splitter that can be used for high-power lasers and large beam diameters.
• It is used in optical systems such as polarization attenuators for high-power lasers and optical systems that vary the light divergence ratio.
• By setting the incident angle to the Brewster angle, a beam splitter with a high S and P polarization separation ratio has been realized.
• Since dielectric multilayer films are used for coating, light loss is small and polarization separation can be achieved efficiently.
• Since it is a plate type, the weight does not become heavy even if the effective diameter of the beam increases.
• The distance that light passes through the glass is reduced, so it is less affected by wavelength dispersion and chromatic aberration.
• * Before use, make sure that the energy density of the incident laser beam does not exceed the laser capacity.
• * If the laser beam is narrowly narrowed by a lens or concave reflection, the energy density may exceed the laser capacity of the device and the device may be damaged.
• * The back surface of the plate-type polarization beam splitter is not coated with anti-reflection film. (The reflection is 0% due to P polarization incident on the Brewster angle.)
• * If the light is incident from the back side, S-polarized light may be reflected from the back side, resulting in multi-reflection stray light.
• * Use according to the incidence angle indicated in the specifications.
• * When the angle of incidence is different, the transmittance wavelength characteristics change, and the transmittance, reflectivity, and the separation ratio between P-polarized light and S-polarized light change.
• * Note that the angle of incidence varies depending on the material and wavelength.
• * Characteristics of the polarization beam splitter cannot be obtained except for the adaptive wavelength.
• * Select the element suitable for the wavelength to be used.
• * Due to the effect of the refractive index and thickness of the substrate, the optical path of the transmitted light is translated by several millimeters relative to the incident light.