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Product Announcement

Polarization Beamsplitter Cube (PBS) December 30, 2019

30 Dec 2019


The coatings have been designed to hold both the s- and p-polarization components to the same ratio of reflection-to-transmission over a specific laser wavelength region. This means that they will not change the state of polarization of the incident beam .The low polarization dependence of the metallic-dielectric coating allows the transmission and reflection for S- and P-polarization states to be within 6% of each other. All entrance and exit surfaces are coated with a high efficiency, narrowband, anti-reflection coating. We offer both broadband and single wavelength non-polarizing beamsplitters.

Polarization beamsplitter cube split randomly polarized beams into twp orthogonal, linearly, polarized components-S-polarized light is reflected at a 90°. Angle while P-polarized light is transmitted. Each beamsplitter consists of a pair of precision high tolerance right angle prism cemented together wieh a dielectric coating on the hypotenused of one of prism.

Polarization Beamsplitter (PBS)

Item                          Commercial  High Precision
Material:                          N-BK7; Fused Silica
Dimension X×Y:       1×1mm~25.4×25.4mm
Dimension   tolerance:           ±0.1mm ±0.03mm
Parallelism:                    <20 seconds <5 seconds
Clear   Aperture:              85%
Surface Quality:      MIL60-40 MIL20-10
Flatness(per 25.4mm):       λ/4@ 632.8nm    λ/10@   632.8nm
T/R(for random porlarization)T=(Ts+Tp)/2;R=(Rs+Rp)/2: 50/50±5%  50/50±2%
Bevel(face width×45°) :       Protective bevel or specified by customer
Coating: Range of the wavelength specified by customer



Standard Coating wavelength:

Narrow Band: ---------488, 532, 632.8, 650, 808, 850, 980, 1064, 1310, 1550 nm
Broadband: ------------450-650, 650-850, 900-1200, 1200-1550, 1500-1610 nm

Narrow Band:
Material: BK7
Wavelenght: 488, 532, 632.8, 650, 808, 850, 980, 1064, 1310, 1550 nm 


BRD Optical Co., Ltd
No. 399 Bo Cai Road
High-Tech Development Area
Tel: +86 431 8918 0668 - 801
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