Beam Combiner
 

Beam Combiners are ideal for applications where diode lasers are being used for system alignment. Designed for used at 45 degree, they transmit the long wavelength beam and align it with the 90 degree reflected diode beam.

 

The displacement of the output beam to the incident beam is given by the following equation:

 

Where, 

α is angle of incidence

n is index of refraction

t is thickness

d is displacement of the material

 

For example: BCZ-1-3, d=1mm; BCBK-1-3, d=0.8mm

 

1. Beam Combiner for CO2 Laser (wavelength 10.6um)

 

Average transmission > 99%@10.6um, Average reflection > 85%@650nm (or 633nm)

 

Diameter Tolerance:+0/-0.13mm

Thickness:±0.25mm

Side1:T>99%@10.6um,45AOI

Side2:T>99%@10.6um R>85%@650nm or 633nm 45AOI

Flatness:λ/20 @10.6um

 

Part No.

Material

Diameter (inch)

Thickness (mm)

Remark

BCZ-0.5-2-650

ZnSe

0.5

2

MaxT10.6µm/MaxR650nm

BCZ-0.75-2-650

ZnSe

0.75

2

MaxT10.6µm/MaxR650nm

BCZ-1.0-3-650

ZnSe

1.0

3

MaxT10.6µm/MaxR650nm

BCZ-1.1-3-650

ZnSe

1.1

3

MaxT10.6µm/MaxR650nm

BCZ-1.5-3-650

ZnSe

1.5

3

MaxT10.6µm/MaxR650nm

BCZ-1-3-9.4-650

ZnSe

1.0

3

MaxT9.5µm/MaxR650nm

BCZ-20-2-650

ZnSe

20mm

2

MaxT10.6µm/MaxR650nm

BCZ-0.5-2-633

ZnSe

0.5

2

MaxT10.6µm/MaxR633nm

BCZ-0.75-2-633

ZnSe

0.75

2

MaxT10.6µm/MaxR633nm

BCZ-1-3-633

ZnSe

1

3

MaxT10.6µm/MaxR633nm

BCZ-1.5-3-633

ZnSe

1.5

3

MaxT10.6µm/MaxR633nm

 

 


2. Beam Combiner for Nd:YAG Laser (wavelength 1064nm)

 

Average transmission > 99%@1064nm, Average reflection > 85%@650nm

 

Diameter Tolerance:+0/-0.13mm

Thickness:±0.25mm

Side1:T>99%@1064nm,45AOI

Side2:T>99%@1064nm,R>85%@650nm,45AOI

Flatness: λ/2 @1064nm per 25mm dia

 

Part No.

Material

Diameter (inch)

Thickness (mm)

BCBK-0.5-2

BK7

0.5

2

BCBK-0.75-2

BK7

0.75

2

BCBK-0.75-3

BK7

0.75

3

BCBK-1.0-3

BK7

1.0

3

BCBK-1.0-3.4

BK7

1.0

3.4

BCBK-1.1-3

BK7

1.1

3

BCBK-1.5-3

BK7

1.5

3

 

 

 

 

 

3. Beam Combiner for Green Laser (532nm)

 

Diameter Tolerance:+0/-0.13mm

Thickness:±0.25mm

Side1:T>99%@532nm,45AOI

Side2:T>99%@532nm,R>85%@650nm,45AOI

Flatness: λ/2 @560nm per 25mm dia

 

Part No.

Material

Diameter (inch)

Thickness (mm)

BCBK-1-3-532T650R

BK7

1

3

 

 

4. Reverse Beam Combiner

 

Reverse YAG Beam Combiner refers to an optic component used to transmit a short wavelength beam (eg. 650nm) at an angle of incidence of 45º while reflecting a long wavelength 1064nm.

 

Diameter Tolerance:+0/-0.13mm

Thickness:±0.25mm

Side1:T>99%@650nm,45AOI

Side2:T>99%@650nm R>99%@1064nm,45AOI

Flatness: λ/2 @1064nm per 25mm dia

 

Part No.

Material

Diameter (inch)

Thickness (mm)

BCBK-1-3.5-1064R

BK7

1

3.5

BCBK-1-7-1064R

BK7

1

7

BCBK-2-6.35-1064R

BK7

2

6.35
 
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