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Beamsplitters cube beamsplitters  
 
LASER-LINE POLARIZING CUBE BEAMSPLITTERS Download PDF document

Coated polarizing cube beamsplitters are available for twelve common laser wavelengths, from the ultraviolet to the infrared, providing a polarization purity of 98 percent or better at their design wavelength.

For normal incidence, monochromatic, unpolarized light:
The incident beam is separated into two polarized beams which emerge through adjacent faces and in directions 90 degrees apart.
The beam that passes straight through the cube emerges as linearly p-polarized, with the electric field vector parallel to the plane of incidence.
The beam that emerges from the cube at right angles to the incident beam is linearly s-polarized, with the electric field vector orthogonal to the plane of incidence.

When used with a linearly polarized monochromatic incident beam:
The incident beam is similarly divided.
The ratio of the emergent beam irradiances depends on the orientation of the incident beam electric field vector.

For greater extinction, each cube can be replaced by a pair of cubes in identical orientation. The resulting extinction ratio will be the square of a single pair.

Standard Specifications:
polarizing cube beamsplitters

Optical Material:
Diameter Tolerance:
Surface Quality:
Surface Flatness:
Beam Deviation:
Principal Transmittance:
Principal Reflectance:
Clear Aperture:
Bevel:
Coating:

Available Wavelength:



BK7 grade A optical glass
±0.2mm
40-20 scratch and dig
lambda/4 at 632.8nm
<10 arc minutes
Tp>91% AND Ts<1%
Rs>99% AND Rs<9%
>85%
<0.25mm X 45°
Broadband antireflection coating on entrance and exit faces.
488, 532, 632.8, 650,780, 808, 850, 980, 1047, 1053, 1064, 1310, 1319, 1342 1550 nm


Standard Laser-line Polarizing Cube Beamsplitters

Dimension(mm)

Shape

Nominal R/T Ratio

Product Number

10.0x10.0x10.0

Square

50/50

UQT-LPB0501

12.7x12.7x12.7

Square

50/50

UQT-LPB0502

15.0x15.0x15.0

Square

50/50

UQT-LPB0503

20.0x20.0x20.0

Square

50/50

UQT-LPB0504

25.4x25.4x25.4

Square

50/50

UQT-LPB0505

Please Contact ultiQuest for other dimensions in prototype and production quantities.
 
NOTES!  
The transmittance curve is a graph based on actual measurements and may vary from production lot to production lot.
The surface flatness is the reflected wavefront distortion of the surface before coating.
Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
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  For more information on product,please contact our product manager Mr.Grand Liu by email: info@ultiquestcom.com
 
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