High-Power Zoom Laser Beam Expander

BEZHP_VARIABLE

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BEZHP_VARIABLE

It is high-power zoom Laser beam expander.
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.

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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.

Guide ▶We provide the laser beam expander holders (KLH-BE) for optical axis adjustment of the laser beam expander.
WEB Reference Catalog Code/W4147

Name Delivery Price Add to cart

High-Power Zoom Laser Beam Expander
BEZHP-2/8-250/280

2 weeks

Material	Synthetic fused silica
Housing Material	Aluminum
Housing Finish	Black Anodized
Incident angle	0°
Variable expansion ratio	2× - 8×
Design wavelength	250 - 266nm
Output aperture diameter	φ27mm
Input aperture	φ3mm (×2-×8), Maxφ10mm (×2)
AR coating wavelengths	250-280nm
Transmittance (AR coat calculated value)	>98% (266nm), >94% (257.5nm), >94% (250-280nm)^*2 >43% (600-700nm)
Transmitted wavefront distortion (P-V)	< λ/7 (design value for input dia. of 3mm or 2mm for 8x magnification.) Reference <λ/4 (input beam dia. 4mm, magnification 3x, 632.8nm)^*3
Laser Damage Threshold <sup>*1</sup>	4.0J/cm²
Weight	0.47kg
Availability	Please contact
*1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz
*2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.

High-Power Zoom Laser Beam Expander
BEZHP-2/8-1030/1100

2 weeks

Material	Synthetic fused silica
Housing Material	Aluminum
Housing Finish	Black Anodized
Incident angle	0°
Variable expansion ratio	2× - 8×
Design wavelength	1030 - 1064nm
Output aperture diameter	φ27mm
Input aperture	φ3mm (×2-×8), Maxφ10mm (×2)
AR coating wavelengths	1030 - 1100nm
Transmittance (AR coat calculated value)	>98% (1064nm), >96% (1030nm), >96% (1030-1100nm)^*2 >43% (600-700nm)
Transmitted wavefront distortion (P-V)	< λ/7 (design value for input dia. of 4mm or 3mm for 7x magnification.) Reference <λ/4 (input beam dia. 4mm, magnification 3x, 632.8nm)^*3
Laser Damage Threshold <sup>*1</sup>	10.0J/cm²
Weight	0.47kg
Availability	Please contact
*1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz
*2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.

High-Power Zoom Laser Beam Expander
BEZHP-1/3-500/570

6-12 weeks

$1,561.00

Material	Synthetic fused silica
Housing Material	Aluminum
Housing Finish	Black Anodized
Incident angle	0°
Variable expansion ratio	1× - 3×
Design wavelength	500 - 532nm
Output aperture diameter	φ25mm
Input aperture	φ6mm (×1-×3), Maxφ14mm (×1)
AR coating wavelengths	500 - 570nm
Transmittance (AR coat calculated value)	>98% (532nm), >96% (515nm), >96% (500-570nm)^*2 >43% (600-700nm)
Transmitted wavefront distortion (P-V)	< λ/7 (design value for input dia. of 5mm.) Reference <λ/4 (input beam dia. 4mm, magnification 3x, 632.8nm)^*3
Laser Damage Threshold <sup>*1</sup>	5.0J/cm²
Weight	0.21kg
Availability	Please contact
*1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz
*2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.

High-Power Zoom Laser Beam Expander
BEZHP-2/8-340/380

2 weeks

Material	Synthetic fused silica
Housing Material	Aluminum
Housing Finish	Black Anodized
Incident angle	0°
Variable expansion ratio	2× - 8×
Design wavelength	340 - 355nm
Output aperture diameter	φ27mm
Input aperture	φ3mm (×2-×8), Maxφ10mm (×2)
AR coating wavelengths	340 - 380nm
Transmittance (AR coat calculated value)	>98% (355nm), >94% (343.3nm), >94% (340-380nm)^*2 >43% (600-700nm)
Transmitted wavefront distortion (P-V)	< λ/7 (design value for input dia. of 3mm or 2mm for 8x magnification.) Reference <λ/4 (input beam dia. 4mm, magnification 3x, 632.8nm)^*3
Laser Damage Threshold <sup>*1</sup>	4.0J/cm²
Weight	0.47kg
Availability	Please contact
*1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz
*2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.

High-Power Zoom Laser Beam Expander
BEZHP-1/3-250/280

6-12 weeks

$1,561.00

Material	Synthetic fused silica
Housing Material	Aluminum
Housing Finish	Black Anodized
Incident angle	0°
Variable expansion ratio	1× - 3×
Design wavelength	250 - 266nm
Output aperture diameter	φ25mm
Input aperture	φ6mm (×1-×3), Maxφ14mm (×1)
AR coating wavelengths	250-280nm
Transmittance (AR coat calculated value)	>98% (266nm), >94% (257.5nm), >94% (250-280nm)^*2 >43% (600-700nm)
Transmitted wavefront distortion (P-V)	< λ/7 (design value for input dia. of 5mm.) Reference <λ/4 (input beam dia. 4mm, magnification 3x, 632.8nm)^*3
Laser Damage Threshold <sup>*1</sup>	2.0J/cm²
Weight	0.21kg
Availability	Please contact
*1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz
*2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.

High-Power Zoom Laser Beam Expander
BEZHP-1/3-1030/1100

6-12 weeks

$1,561.00

Material	Synthetic fused silica
Housing Material	Aluminum
Housing Finish	Black Anodized
Incident angle	0°
Variable expansion ratio	1× - 3×
Design wavelength	1030 - 1064nm
Output aperture diameter	φ25mm
Input aperture	φ6mm (×1-×3), Maxφ14mm (×1)
AR coating wavelengths	1030 - 1100nm
Transmittance (AR coat calculated value)	>98% (1064nm), >96% (1030nm), >96% (1030-1100nm)^*2 >43% (600-700nm)
Transmitted wavefront distortion (P-V)	< λ/7 (design value for input dia. of 5mm.) Reference <λ/4 (input beam dia. 4mm, magnification 3x, 632.8nm)^*3
Laser Damage Threshold <sup>*1</sup>	7.0J/cm²
Weight	0.21kg
Availability	Please contact
*1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz
*2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.

High-Power Zoom Laser Beam Expander
BEZHP-2/8-500/570

6-12 weeks

Material	Synthetic fused silica
Housing Material	Aluminum
Housing Finish	Black Anodized
Incident angle	0°
Variable expansion ratio	2× - 8×
Design wavelength	500 - 532nm
Output aperture diameter	φ27mm
Input aperture	φ3mm (×2-×8), Maxφ10mm (×2)
AR coating wavelengths	500 - 570nm
Transmittance (AR coat calculated value)	>98% (532nm), >96% (515nm), >96% (500-570nm)^*2 >43% (600-700nm)
Transmitted wavefront distortion (P-V)	< λ/7 (design value for input dia. of 4mm or 2mm for 7x magnification.) Reference <λ/4 (input beam dia. 4mm, magnification 3x, 632.8nm)^*3
Laser Damage Threshold <sup>*1</sup>	5.0J/cm²
Weight	0.47kg
Availability	Please contact
*1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz
*2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.

High-Power Zoom Laser Beam Expander
BEZHP-1/3-340/380

2 weeks

$1,561.00

Material	Synthetic fused silica
Housing Material	Aluminum
Housing Finish	Black Anodized
Incident angle	0°
Variable expansion ratio	1× - 3×
Design wavelength	340 - 355nm
Output aperture diameter	φ25mm
Input aperture	φ6mm (×1-×3), Maxφ14mm (×1)
AR coating wavelengths	340 - 380nm
Transmittance (AR coat calculated value)	>98% (355nm), >94% (343.3nm), >94% (340-380nm)^*2 >43% (600-700nm)
Transmitted wavefront distortion (P-V)	< λ/7 (design value for input dia. of 5mm.) Reference <λ/4 (input beam dia. 4mm, magnification 3x, 632.8nm)^*3
Laser Damage Threshold <sup>*1</sup>	4.0J/cm²
Weight	0.21kg
Availability	Please contact
*1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz
*2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.

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◦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.