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Beam Expanders

Beam expander is an optical component built to enlarge the diameter of collimated input beam and reduce beam divergence.
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Lens assemblies for changing the laser beam diameter and divergence

 

Beam expander is an optical component built to enlarge the diameter of collimated input beam and reduce beam divergence. It is primarily applied in laser scanning, laser processing, interferometry and remote sensing. A typical Galilean type beam expander consists of one negative lens and one positive lens.
CASTECH offers two types of beam expanders, fixed magnification and variable magnification. The fixed magnification beam expander is with compact design,  which benefits system integration. The magnification and divergence of variable type are adjustable, making it easy to adapt to different application scenarios.
Our product covers diverse magnifications and wavelengths to meet various application requirements. Advanced polishing and coating technology have been used to ensure high beam quality and low insertion loss.  

 

Applications:

● Laser scanning

● Short pulsed laser

● Ultra-short pulsed laser

 

CASTECH's products are produced independently throughout the entire process and can be customized according to customer needs. Refer to the following list for standard products.

Keyword:
laser Beam Expander fixed
laser Beam Expander variable magnification
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Beam Expander Model Number:tBE-b-c-d-e

Type (t)

Wavelength (b)

Expansion (c)

Thread (d)

Divergence Adjustable (e)

F (Fixed magnification)

V (Variable magnification)

EV (Electric variable magnification)

355 nm

532 nm

1064 nm

...

2 (2X)

3 (3X)

  1:3 (1X-3X)*

  1:4 (1X-4X)*

  2:8 (2X-8X)*

...

22 (M22*0.75)

30 (M30*1)

...

A (Yes)

B (No)

 

Typical Specifications

Expansion

Material

Input Aperture

Exit Aperture

Max Outside Diameter

2

UVFS

12 mm

26 mm

42 mm

10

UVFS

6 mm

31 mm

46 mm

  2X-8X*

UVFS

3 mm

26 mm

48 mm

*Only suitable for V/EV (variable/electric variable magnification beam expander) type products

 

 

Housing dimensions(mm):

 

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  • Beam Expanders

  • Beam expander is an optical component built to enlarge the diameter of collimated input beam and reduce beam divergence.
Description
Parameters
CAS'TechClass
Download

Lens assemblies for changing the laser beam diameter and divergence

 

Beam expander is an optical component built to enlarge the diameter of collimated input beam and reduce beam divergence. It is primarily applied in laser scanning, laser processing, interferometry and remote sensing. A typical Galilean type beam expander consists of one negative lens and one positive lens.
CASTECH offers two types of beam expanders, fixed magnification and variable magnification. The fixed magnification beam expander is with compact design,  which benefits system integration. The magnification and divergence of variable type are adjustable, making it easy to adapt to different application scenarios.
Our product covers diverse magnifications and wavelengths to meet various application requirements. Advanced polishing and coating technology have been used to ensure high beam quality and low insertion loss.  

 

Applications:

● Laser scanning

● Short pulsed laser

● Ultra-short pulsed laser

 

CASTECH's products are produced independently throughout the entire process and can be customized according to customer needs. Refer to the following list for standard products.

Beam Expander Model Number:tBE-b-c-d-e

Type (t)

Wavelength (b)

Expansion (c)

Thread (d)

Divergence Adjustable (e)

F (Fixed magnification)

V (Variable magnification)

EV (Electric variable magnification)

355 nm

532 nm

1064 nm

...

2 (2X)

3 (3X)

  1:3 (1X-3X)*

  1:4 (1X-4X)*

  2:8 (2X-8X)*

...

22 (M22*0.75)

30 (M30*1)

...

A (Yes)

B (No)

 

Typical Specifications

Expansion

Material

Input Aperture

Exit Aperture

Max Outside Diameter

2

UVFS

12 mm

26 mm

42 mm

10

UVFS

6 mm

31 mm

46 mm

  2X-8X*

UVFS

3 mm

26 mm

48 mm

*Only suitable for V/EV (variable/electric variable magnification beam expander) type products

 

 

Housing dimensions(mm):

 

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