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레이저 시스템 Laser System(166)

Fixed Ratio Beam Expander

PRODUCT

Fixed Ratio Beam Expander

Wavefront distortion better than λ/4
High laser induced damage threshold
Transmission better than 97%
LDT >7J/cm2 for 10 ns pulses @ 1064 nm

APPLICATION

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제품정보 PRODUCT INFO

There are two common types of fixed beam expander: Keplerian and Galilean. Basic Keplerian beam expanders are assembled using two converging lenses and benefit from real intermediate focus, where pinhole can be placed for spatial filtering, thus providing better beam wave front at the output, however the focus can cause air breakdown at high power densities. Basic Galilean beam expanders are assembled using one diverging and one converging lenses, so there is no focal point inside the beam expander, thus it can be used for high powers. For low expansion ratios (1.3 - 20 times) the Galilean beam expander is preferred due to its simplicity and small size. We offer beam expanders made from two, three, or more spherical lens made from BK7, FS, UVFS or other glasses which suit high power applications. Beam expander for any wavelength between 266 - 2000 nm is available on request.

 

-. Wavefront distortion better than λ/4
-. High laser induced damage threshold
-. Transmission better than 97%
-. LDT >7J/cm2 for 10 ns pulses @ 1064 nm

 


Beam Expander

Expansion ratio

Wavelength, nm

Input aperture, mm

Exit aperture, mm

Model

2X

1064

>5

25

BE-2X-1064-S

3X

1064

>5

25

BE-3X-1064-S

4X

1064

>5

25

BE-4X-1064-S

5X

1064

>3

18

BE-5X-1064-S

6X

1064

>3

18

BE-6X-1064-S

8X

1064

>3

18

BE-8X-1064-S

10X

1064

>3

18

BE-10X-1064-S

12X

1064

>3

18

BE-12X-1064-S

2X

532

>5

25

BE-2x-532

3X

532

>5

25

BE-3x-532

5X

532

>3

18

BE-5x-532

10X

532

>3

18

BE-10x-532

2X

355

>5

25

BE-2x-355

3x

355

>5

25

BE-3x-355

5X

355

>3

18

BE-5x-355

10X

355

>3

25

BE-10x-355

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