Beamsplitter
 
 
 
1. High Power Beamsplitter Plate
 
Beamsplitter plates can be used with high power laser. When using beamsplitter plates, it is important to bear in mind that the two partial beams travel different optical paths. And the optical paths depend on the incident angle and the thickness of plates.
 
Material: Optical grade BK7 or UVFS
Dimension Tolerance: +0.0, -0.2mm
Wavefront Distortion: <1/10 lambda@633nm
Parallelism: <1
Clear Aperture: >85%
Surface Quality: 10/5 Scratch and Dig
Incidence: 45 deg.
AR Coating: Rp<0.25%@45 deg., Rs<1.3%@45 deg.
Major Coating: 10%=R=90%, +/3%
Damage Threshold: 10J/cm2@10ns, 15KW/cm2 CW 1064nm
Wavelength: 473nm, 532nm, 632.8nm, 650nm, 780nm, 808nm, 850nm, 980nm, 1047nm, 1053nm, 1064nm
 
 
2. Beamsplitter Cube 
 
Compared with beamsplitter plate, beamsplitter cube has the following advantages:
Identical path lengths for both the reflected and the transmitted beams
The transmitted beam is neither displaced nor deflected.
 
Material: Optical grade BK7
Dimension Tolerance: +0.0, -0.2mm
Wavefront Distortion: <1/6 lambda@633nm
Beam Deviation: <1
Clear Aperture: >85%
Surface Quality: 40/20 Scratch and Dig
T/R: 50/50+/-5%, for natural right, T=(Ts+Tp)/2, R=(Rs+Rp)/2
Standard Wavelength: 442nm, 488nm, 532nm, 632.8nm, 650nm, 808nm, 850nm, 980nm, 1064nm, 1310nm, 1550nm
Broaden Wavelength: 450-650nm, 650-900nm, 900-1200nm, 1200-1500nm, 1500-1610nm
 
 
3. Polarizer Beamsplitter Cube 
 
The prisms can be used as polarizers, beamsplitters or beam combiners. The output beam which is parallel to input beam is called p-polarized beam while the orthogonal output beam is defined as s-polarized beam.
 
Material: Optical grade BK7, SF2
Dimension Tolerance: +0.0, -0.2mm
Wavefront Distortion: <1/6 lambda@633nm
Beam Deviation: <2
Surface Quality: 60/40 Scratch and Dig
Extinction Ratio:>500:1
Principal Transmittance: Tp>99% and Ts<0.2%
Principal Reflectance: Rs>99.8% and Rp<1%
Standard Wavelength: 488nm, 532nm, 632.8nm, 650nm, 808nm, 850nm, 980nm, 1064nm, 1310nm, 1550nm
Broaden Wavelength: 450-650nm, 650-900nm, 900-1200nm, 1200-1500nm, 1500-1610nm
 
 
4. Polarizer Beamsplitter Cube 
 
Non-polarizing Cube Beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a metallic-dielectric coating on the hypotenuse of one of the prisms. The low polarization dependence of the metallic-dielectric coating allows the transmission and reflection for S- and P- polarization states to be within 5% of each other. This means that theywill not change the state of polarization of the incident beam.
 
Material: Optical grade BK7
Dimension Tolerance: +0.2, -0.2mm
Wavefront Distortion: <1/6 lambda@633nm
Beam Deviation: <2
Surface Quality: 60/40 Scratch and Dig
Transmittance: 45%+/-5%
Absorption: <10%
Polarization: 6%
Standard Wavelength: 488nm, 532nm, 632.8nm, 650nm, 808nm, 850nm, 980nm, 1064nm, 1310nm, 1550nm
 
 

 

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