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BEHP
Design wavelength
Beam magnification
Output aperture diameter
Input Clear aperture
Effective incident beam diameter at incident angle ± 1 °
AR coating wavelengths
Transmittance (AR coat calculated value)
Transmitted wavefront distortion (P-V)
Laser Damage Threshold *1
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These laser beam expanders are designed for use with a high-power laser.
It supports a broader wavelength range than the current models.
It can be used in an optical system with high precision, such as a laser interferometer and processing by the lens design that takes into account the wavefront aberration.

◦The optical design of the beam expander is an air gap configuration that does not use an adhesive to bond the lenses. This allows the beam expander to be used with a high-power laser.
◦It is designed and coated to enable to use in a broader wavelength range than the current models.
◦By turning the diopter ring that is attached to the center of the beam expander, you can make variable beams such as the focused beam, collimated beam, and the divergent beam. It is used when you want to vary the position of the beam waist and if strict collimation adjustment is necessary.

Related product
Products
Technical Data
Documents/Downloads
Guide

▶We also can provide a holder for our laser beam expander (KLH-BE) for the fine adjustment with tilt angle and to secure the beam expander. W4147

Attention

▶The laser energy density at small aperture(output aperture) will become higher than LIDT when reducing the beam diameter and the Beam expander might be broken.
▶It may not be able to obtain the expected function when the beam expander is used in the opposite direction (reducing the beam diameter). Please refer the technical note of he laser beam expander for details.

Common Specifications
Lens MaterialSynthetic fused silica
Housing MaterialAluminum
Housing FinishBlack Anodized
Incident angle
Pointing <0.5mrad (Reference value)
Outline Drawing
■BEHP-1.5/-2/-3

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■BEHP-4/-5/-6/-7/-8/-9/-10

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Typical Reflectance Data
■BEHP-250/280

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R: Reflectance per surface
■BEHP-340/380

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R: Reflectance per surface
■BEHP-500/570

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R: Reflectance per surface
■BEHP-1030/1100

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R: Reflectance per surface
Spec
Compare
Part Number
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    JP Yen Stock Qty
BEHP-1.5-250/280NEW
BEHP-1.5-340/380NEW
BEHP-1.5-500/570NEW
BEHP-1.5-1030/1100NEW
BEHP-2-250/280NEW
BEHP-2-340/380NEW
BEHP-2-500/570NEW
BEHP-2-1030/1100NEW
BEHP-3-250/280NEW
BEHP-3-340/380NEW
BEHP-3-500/570NEW
BEHP-3-1030/1100NEW
BEHP-4-250/280NEW
BEHP-4-340/380NEW
BEHP-4-500/570NEW
BEHP-4-1030/1100NEW
BEHP-5-250/280NEW
BEHP-5-340/380NEW
BEHP-5-500/570NEW
BEHP-5-1030/1100NEW
BEHP-6-250/280NEW
BEHP-6-340/380NEW
BEHP-6-500/570NEW
BEHP-6-1030/1100NEW
BEHP-7-250/280NEW
BEHP-7-340/380NEW
BEHP-7-500/570NEW
BEHP-7-1030/1100NEW
BEHP-8-250/280NEW
BEHP-8-340/380NEW
BEHP-8-500/570NEW
BEHP-8-1030/1100NEW
BEHP-9-250/280NEW
BEHP-9-340/380NEW
BEHP-9-500/570NEW
BEHP-9-1030/1100NEW
BEHP-10-250/280NEW
BEHP-10-340/380NEW
BEHP-10-500/570NEW
BEHP-10-1030/1100NEW

250 - 260nm

1.5×

φ26mm

φ11mm

φ6mm

250 - 280nm

>99% (266nm), >97% (257.5nm), >97% (250-280nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

2.0J/cm2

0.25kg

340 - 355nm

1.5×

φ26mm

φ11mm

φ6mm

340 - 380nm

>99% (355nm), >97% (343.3nm), >97% (340-380nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

4.0J/cm2

0.25kg

500 - 532nm

1.5×

φ26mm

φ11mm

φ6mm

500 - 570nm

>99% (532nm), >98% (515nm), >98% (500-570nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

5.0J/cm2

0.25kg

1030 - 1064nm

1.5×

φ26mm

φ11mm

φ6mm

1030 - 1100nm

>99% (1064nm), >98% (1030nm), >98% (1030-1100nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

7.0J/cm2

0.25kg

250 - 260nm

φ26mm

φ10mm

φ6mm

250 - 280nm

>99% (266nm), >97% (257.5nm), >97% (250-280nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

2.0J/cm2

0.21kg

340 - 355nm

φ26mm

φ10mm

φ6mm

340 - 380nm

>99% (355nm), >97% (343.3nm), >97% (340-380nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

4.0J/cm2

0.21kg

500 - 532nm

φ26mm

φ10mm

φ6mm

500 - 570nm

>99% (532nm), >98% (515nm), >98% (500-570nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

5.0J/cm2

0.21kg

1030 - 1064nm

φ26mm

φ10mm

φ6mm

1030 - 1100nm

>99% (1064nm), >98% (1030nm), >98% (1030-1100nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

7.0J/cm2

0.21kg

250 - 260nm

φ26mm

φ8mm

φ6mm

250 - 280nm

>99% (266nm), >97% (257.5nm), >97% (250-280nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

2.0J/cm2

0.21kg

340 - 355nm

φ26mm

φ8mm

φ6mm

340 - 380nm

>99% (355nm), >97% (343.3nm), >97% (340-380nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

4.0J/cm2

0.21kg

500 - 532nm

φ26mm

φ8mm

φ6mm

500 - 570nm

>99% (532nm), >98% (515nm), >98% (500-570nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

5.0J/cm2

0.21kg

1030 - 1064nm

φ26mm

φ8mm

φ6mm

1030 - 1100nm

>99% (1064nm), >98% (1030nm), >98% (1030-1100nm)*2 >65% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

7.0J/cm2

0.21kg

250 - 260nm

φ35mm

φ6mm

φ6mm

250 - 280nm

>98% (266nm), >96% (257.5nm), >96% (250-280nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

4.0J/cm2

0.27kg

340 - 355nm

φ35mm

φ6mm

φ6mm

340 - 380nm

>98% (355nm), >96% (343.3nm), >96% (340-380nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

4.0J/cm2

0.27kg

500 - 532nm

φ35mm

φ6mm

φ6mm

500 - 570nm

>98% (532nm), >97% (515nm), >97% (500-570nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

7.0J/cm2

0.27kg

1030 - 1064nm

φ35mm

φ6mm

φ6mm

1030 - 1100nm

>98% (1064nm), >97% (1030nm), >97% (1030-1100nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 6mm.) Reference <λ/4 (input beam dia. 6mm, 632.8nm)*3

10.0J/cm2

0.27kg

250 - 260nm

φ35mm

φ5mm

φ5mm

250 - 280nm

>98% (266nm), >96% (257.5nm), >96% (250-280nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 5mm.) Reference <λ/4 (input beam dia. 5mm, 632.8nm)*3

4.0J/cm2

0.27kg

340 - 355nm

φ35mm

φ5mm

φ5mm

340 - 380nm

>98% (355nm), >96% (343.3nm), >96% (340-380nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 5mm.) Reference <λ/4 (input beam dia. 5mm, 632.8nm)*3

4.0J/cm2

0.27kg

500 - 532nm

φ35mm

φ5mm

φ5mm

500 - 570nm

>98% (532nm), >97% (515nm), >97% (500-570nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 5mm.) Reference <λ/4 (input beam dia. 5mm, 632.8nm)*3

7.0J/cm2

0.27kg

1030 - 1064nm

φ35mm

φ5mm

φ5mm

1030 - 1100nm

>98% (1064nm), >97% (1030nm), >97% (1030-1100nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 5mm.) Reference <λ/4 (input beam dia. 5mm, 632.8nm)*3

10.0J/cm2

0.27kg

250 - 260nm

φ35mm

φ4mm

φ4mm

250 - 280nm

>98% (266nm), >96% (257.5nm), >96% (250-280nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 4mm.) Reference <λ/4 (input beam dia. 4mm, 632.8nm)*3

4.0J/cm2

0.27kg

340 - 355nm

φ35mm

φ4mm

φ4mm

340 - 380nm

>98% (355nm), >96% (343.3nm), >96% (340-380nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 4mm.) Reference <λ/4 (input beam dia. 4mm, 632.8nm)*3

4.0J/cm2

0.27kg

500 - 532nm

φ35mm

φ4mm

φ4mm

500 - 570nm

>98% (532nm), >97% (515nm), >97% (500-570nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 4mm.) Reference <λ/4 (input beam dia. 4mm, 632.8nm)*3

7.0J/cm2

0.27kg

1030 - 1064nm

φ35mm

φ4mm

φ4mm

1030 - 1100nm

>98% (1064nm), >97% (1030nm), >97% (1030-1100nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 4mm.) Reference <λ/4 (input beam dia. 4mm, 632.8nm)*3

10.0J/cm2

0.27kg

250 - 260nm

φ35mm

φ3mm

φ3mm

250 - 280nm

>98% (266nm), >96% (257.5nm), >96% (250-280nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 3mm.) Reference <λ/4 (input beam dia. 3mm, 632.8nm)*3

4.0J/cm2

0.27kg

340 - 355nm

φ35mm

φ3mm

φ3mm

340 - 380nm

>98% (355nm), >96% (343.3nm), >96% (340-380nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 3mm.) Reference <λ/4 (input beam dia. 3mm, 632.8nm)*3

4.0J/cm2

0.27kg

500 - 532nm

φ35mm

φ3mm

φ3mm

500 - 570nm

>98% (532nm), >97% (515nm), >97% (500-570nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 3mm.) Reference <λ/4 (input beam dia. 3mm, 632.8nm)*3

7.0J/cm2

0.27kg

1030 - 1064nm

φ35mm

φ3mm

φ3mm

1030 - 1100nm

>98% (1064nm), >97% (1030nm), >97% (1030-1100nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 3mm.) Reference <λ/4 (input beam dia. 3mm, 632.8nm)*3

10.0J/cm2

0.27kg

250 - 260nm

φ35mm

φ3mm

φ3mm

250 - 280nm

>98% (266nm), >96% (257.5nm), >96% (250-280nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 3mm.) Reference <λ/4 (input beam dia. 3mm, 632.8nm)*3

4.0J/cm2

0.27kg

340 - 355nm

φ35mm

φ3mm

φ3mm

340 - 380nm

>98% (355nm), >96% (343.3nm), >96% (340-380nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 3mm.) Reference <λ/4 (input beam dia. 3mm, 632.8nm)*3

4.0J/cm2

0.27kg

500 - 532nm

φ35mm

φ3mm

φ3mm

500 - 570nm

>98% (532nm), >97% (515nm), >97% (500-570nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 3mm.) Reference <λ/4 (input beam dia. 3mm, 632.8nm)*3

7.0J/cm2

0.27kg

1030 - 1064nm

φ35mm

φ3mm

φ3mm

1030 - 1100nm

>98% (1064nm), >97% (1030nm), >97% (1030-1100nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 3mm.) Reference <λ/4 (input beam dia. 3mm, 632.8nm)*3

10.0J/cm2

0.27kg

250 - 260nm

φ35mm

φ2.5mm

φ2.5mm

250 - 280nm

>98% (266nm), >96% (257.5nm), >96% (250-280nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 2.5mm.) Reference <λ/4 (input beam dia. 2.5mm, 632.8nm)*3

4.0J/cm2

0.27kg

340 - 355nm

φ35mm

φ2.5mm

φ2.5mm

340 - 380nm

>98% (355nm), >96% (343.3nm), >96% (340-380nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 2.5mm.) Reference <λ/4 (input beam dia. 2.5mm, 632.8nm)*3

4.0J/cm2

0.27kg

500 - 532nm

φ35mm

φ2.5mm

φ2.5mm

500 - 570nm

>98% (532nm), >97% (515nm), >97% (500-570nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 2.5mm.) Reference <λ/4 (input beam dia. 2.5mm, 632.8nm)*3

7.0J/cm2

0.27kg

1030 - 1064nm

φ35mm

φ2.5mm

φ2.5mm

1030 - 1100nm

>98% (1064nm), >97% (1030nm), >97% (1030-1100nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 2.5mm.) Reference <λ/4 (input beam dia. 2.5mm, 632.8nm)*3

10.0J/cm2

0.27kg

250 - 260nm

10×

φ35mm

φ2mm

φ2mm

250 - 280nm

>98% (266nm), >96% (257.5nm), >96% (250-280nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 2mm.) Reference <λ/4 (input beam dia. 2mm, 632.8nm)*3

4.0J/cm2

0.27kg

340 - 355nm

10×

φ35mm

φ2mm

φ2mm

340 - 380nm

>98% (355nm), >96% (343.3nm), >96% (340-380nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 2mm.) Reference <λ/4 (input beam dia. 2mm, 632.8nm)*3

4.0J/cm2

0.27kg

500 - 532nm

10×

φ35mm

φ2mm

φ2mm

500 - 570nm

>98% (532nm), >97% (515nm), >97% (500-570nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 2mm.) Reference <λ/4 (input beam dia. 2mm, 632.8nm)*3

7.0J/cm2

0.27kg

1030 - 1064nm

10×

φ35mm

φ2mm

φ2mm

1030 - 1100nm

>98% (1064nm), >97% (1030nm), >97% (1030-1100nm)*2 >53% (600-700nm)

< λ/10 (design value for input dia. of 2mm.) Reference <λ/4 (input beam dia. 2mm, 632.8nm)*3

10.0J/cm2

0.27kg

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