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Cube Beamsplitters > Broadband Polarizing Beamsplitters

Introduction

These thin film cube beamsplitters combine the excellent characteristics of the laser polarizing beamsplitters previously described with the advantage of broadband application. The polarizing film is fully protected within the cube making them durable and convenient to use. Three wavebands have been chosen to cover most general applications: 450-650 covers the visible spectrum and a wide selection of laser wavelengths 650-900 covers most visible range diode lasers and 1200-1550 covers most telecommunications band diode lasers. Although these polarize will work well over the entire broadband specified they are manufactured to laser performance standards.

 
 

Standard Specifications

 
 

Items

Specifications

Material

BK7 Grade A or equivalent Optical Glass

Dimension Tolerance

¡À 0.2 mm

Surface Quality

scratch and dig 60-40

Beam Deviation

< 3 arc min

Flatness

¦Ë/4 at 632.8 nm per 25 mm

Principal Transmittance

Tp>95% and Ts<1%

Principal Reflectance

Rs>99% and Rp<5%

Coating

Broadband polarization beamsplitter coating: on hypotenuse

BBAR coating : on all input and output face

Notes:

The material besides BK7, SF2 is available.

 
   
 

Part NO.

Size (mm) A=B=C

Wavelength (nm)

BPB0101

10

450-650

BPB0102

12.7

450-650

BPB0103

15

450-650

BPB0104

20

450-650

BPB0105

25.4

450-650

BPB0106

10

650-900

BPB0107

12.7

650-900

BPB0108

15

650-900

BPB0109

20

650-900

BPB0110

25.4

650-900

BPB0111

10

900-1200

BPB0112

12.7

900-1200

BPB0113

15

900-1200

BPB0114

20

900-1200

BPB0115

25.4

900-1200

BPB0116

10

1200-1550

BPB0117

12.7

1200-1550

BPB0118

15

1200-1550

BPB0119

20

1200-1550

BPB0120

25.4

1200-1550

 

 

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