Polarization  Beamsplitter Cube

Polarization Beamsplitter Cube


Polarizing Cube Beamsplitters split randomly polarized beams into two orthogonal,linearly,polarized components-S-polarized light is reflected at a 90deg.Angle while P-polarized light is transmitted.Each beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a dielectric coating on the hypotenuse of one of prisms.

LaserStates has own technology in providing two types of high precision polarizing beamsplitter cube. One is by using cemented method for PBS (standard PBS) another one is using optical bonding method for PBS (as high power PBS).

 The comparison specification of two PBS

Attribute Standard PBS High Power PBS
Bond Method Optical Adhesive Optical Bonding
Damaged Threshold@1064nm 0.2-1J/cm2 >15J/cm2
Flatness Lambda/4 Lambda/8
Transmission@1064nm >95% >96%
Surface Quality S/D 60-40 S/D 40-20 or better
Extinction Ratio 300:1-500:1 >1000:1

Capability of High Power PBS (Single Wavelength)

Attribute High Power PBS (Single Wavelength)
Damage Threshold ~10J/cm2@1064nm 20ns,20Hz
Bond Method Optical Bonding
Extinction Ratio Better than 30dB @ 1064nm
Transmission >96%@Central Wavelength
Surface Quality S/D 40-20
Wavelength Range 355nm±10nm (Material Fused Silica)
532nm ±20nm (Material N-BK7)
1064nm ±30nm (Material N-BK7)
1550nm ±35nm (Material N-BK7)

Part Number Dimension (mm) Wavelength(nm)
PBS-HP-C5.0-1064NM 5.0 1064nm
PBS-HP-C6.0-976NM 6.0 976nm
PBS-HP-C6.35-355NM 6.35 355nm
PBS-HP-C6.35-532NM 6.35 532nm
PBS-HP-C6.35-1064NM 6.35 1064nm
PBS-HP-C12.7-355NM 12.7 355nm
PBS-HP-C12.7-532NM 12.7 532nm
PBS-HP-C12.7-1064NM 12.7 1064nm
PBS-HP-C25.4-532NM 25.4 532nm
PBS-HP-C25.4-1064NM 25.4 1064nm

Capability of High Power PBS (Broadband Wavelength)
 

Attribute High Power PBS (Broadband Wavelength)
Damage Threshold 3-5J/cm2@1064nm 20ns,20Hz
Bond Method Optical Bonding
Extinction Ratio Better than 30dB 
Transmission >92%
Surface Quality S/D 40-20 or better
Wavelength Range 450-650nm/
650-900nm/
900-1200nm/
1200-1600nm

Part Number Dimension (mm) Wavelength(nm)
PBS-HP-C6.35-450-650NM 6.35 450-650nm
PBS-HP-C6.35-650-900NM 6.35 650-900nm
PBS-HP-C12.7-450-650NM 12.7 450-650nm
PBS-HP-C12.7-650-900NM 12.7 650-900nm
PBS-HP-C20.0-450-650NM 20.0 450-650nm
PBS-HP-C20.0-650-900NM 20.0 650-900nm
PBS-HP-C25.4-450-650NM 25.4 450-650nm
PBS-HP-C25.4-650-900NM 25.4 650-900nm

Capability of Standard PBS (Single Wavelength)

Attribute Standard PBS (Single Wavelength)
Dimension Tolerance ±0.2mm
Bond Method Optical Adhesive
Flatness Lambda/4 per 1inch @632.8nm
Surface Quality 40-20
Extinction Ratio >500:1
Beam Deviation <3 arc minutes
Principal Transmittance Tp>95% and Ts<0.2%
Principal Reflectance Rs>99%, Rp<5%
Coating Standard Wavelength 
AR coating on all input and output surfaces
Polarizing Beamsplitter coating on hypotenuse
488/532/632.8/808/980/1064/1310/1550nm
Part Number Dimension (mm) Wavelength(nm)
PBS-C5.0-976NM 5.0 976nm
PBS-C6.0-976NM 6.0 976nm
PBS-C6.35-355NM 6.35 355nm
PBS-C6.35-532NM 6.35 532nm
PBS-C6.35-655NM 6.35 655nm
PBS-C6.35-1064NM 6.35 1064nm
PBS-C12.7-355NM 12.7 355nm
PBS-C12.7-532NM 12.7 532nm
PBS-C12.7-1064NM 12.7 1064nm
PBS-C15.0-650NM 15.0 650nm
PBS-C25.4-532NM 25.4 532nm
PBS-C25.4-1064NM 25.4 1064nm
PBS-C25.4-1319NM 25.4 1319nm

Capability of Standard PBS (Broadband Wavelength)

Attribute Standard PBS (Broadband Wavelength)
Dimension Tolerance ±0.2mm
Bond Method Optical Adhesive
Flatness Lambda/4 per 1inch @632.8nm
Surface Quality 40-20
Extinction Ratio >500:1
Beam Deviation <3 arc minutes
Principal  Tp>92% and Ts<0.2%
Transmittance
Principal Reflectance Rs>99%, Rp<5%
Coating Standard Wavelength 
AR coating on all input and output surfaces
Polarizing Beamsplitter coating on hypotenuse
400-700/700-1000/1000-1200/1200-1600nm
Part Number Dimension (mm) Wavelength(nm)
PBS-C6.35-400-700NM 6.35 400-700nm
PBS-C6.35-700-1000NM 6.35 700-1000nm
PBS-C6.35-1290-1355NM 6.35 1290-1355nm
PBS-C12.7-400-700NM 12.7 400-700nm
PBS-C12.7-700-1000NM 12.7 700-1000nm
PBS-C20.0-400-700NM 20.0 400-700nm
PBS-C20.0-700-1000NM 20.0 700-1000nm
PBS-C25.4-400-700NM 25.4 400-700nm
PBS-C25.4-700-1000NM 25.4 700-1000nm