Zoom Beam Expanders

Keywords: beam expander variable, zoom beam expander, motorised, 1064nm

Aug 13, 2021 View: 1050 Data Sheet

Variable beam expanders are ideal for systems in which different magnifications and precise control of laser beam divergence are required. We offer Galilean type variable beam expanders with high LIDT AR coatings that minimize ghost reflections. Our v

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We offer 3 types of beam expanders: fixed beam expanders, zoom beam expanders and motorised beam expanders at various wavelengths of 213nm, 266nm, 343-355nm, 405nm, 633nm, 515-545nm, 808-980nm, 1030-1090nm, 155nm, 1850-1980nm, 10.6um. Other wavelengths and custom-designed beam expanders are available upon request. For more information, please feel free to contact us.

We may use the following abbreviations in the tables: WL=wavelength, MAG=magnification, CA=clear aperture, CA1=input clear aperture, CA2=output clear aperture, D1=input diameter, D2=output diameter, L1=total length of beam expander, M1=connection or mounting thread, D=diameter.

BEST-W Series YAG Laser Zoom Beam Expanders (266/355/532/1064nm)

We are proud to present our new product. It is specially designed to cater for the various variable magnification of 2x up to 8x. It consists of adjustable pergence. These beam expanders are primarily intended for Nd:YAG, Green & UV lasers. They offer diffraction-limited performance at 1064nm wavelength.

For collimation of laser power<500kw/cm2
Variable magnifications 2x-8x
Galilei Design
Adjustable pergence

Part No.	Magnification	Input CA (mm)	Output CA (mm)	Length (mm)	Remark
BEST-1064-1-3X-W	1x-3x	10	20	85.0
BEST-1064-1-3X-AW	1x-3x	20	38	118.0
BEST-1064-2-8X-W	2x-8x	10	30	142-149
BEST-1064-2-8X-QW	2x-8x	12	32	195
BEST-1064-2-8X-AW	2x-8x	13	60.67	162-169
BEST-800-2-8X-W	2x-8x	10	30	142-149
BEST-532-1-3X-W	1x-3x	10	20	85.0
BEST-532-2-8X-W	2x-8x	10	30	131.1
BEST-532-2-8X-A-W	2x-8x	11	60	190
BEST-355-1-8X-W	1x-8x	10	30	85-200
BEST-355-2-8X-W	2x-8x	10	30	142-149
BEST-355-1-8X-MOT-W	1X-8X	12	32	188	motorised
BEST-355-2-8X-A-W	2x-8x	11	60	183-192
BEST-266-1-8X-W	1x-8x	10	30	162-200

BEST Series Zoom Beam Expanders (355/532/915/1064nm)

1.BEST Series 355nm Zoom Beam Expanders

Part Number	Wavelength	Magnification	In. Aperture (mm)	Out. Aperture (mm)	Max. Lens-⌀ (mm)	Length (mm)	Thread
BEST-1-4X-355	355	1-4X zoom	12mm@1x 6mm@4X	30	46	148	M30X1+M43X0.5+⌀37
BEST-2-8X-355	355	2-8X zoom	12mm@2x 3mm@8X	31	42	164	⌀37.6

2. BEST Series 532nm Zoom Beam Expanders

Part Number	Wavelength	Magnification	In. Aperture (mm)	Out. Aperture (mm)	Max. Lens-⌀ (mm)	Length (mm)	Thread
BEST-1-4X-532	532	1-4X zoom	12mm@1x 6mm@4X	30	46	150	M30X1+M43X0.5+⌀37
BEST-2-8X-532	532	2-8X zoom	12mm@2x 3mm@8X	31	42	169	⌀37.6

3. BEST Series 915nm Zoom Beam Expanders

Part Number	Wavelength	Magnification	In. Aperture (mm)	Out. Aperture (mm)	Max. Lens-⌀ (mm)	Length (mm)	Thread
BEST-1-4X-915	915	1-4X zoom	12mm@1x 6mm@4X	30	46	155	M30X1+M43X0.5+⌀37
BEST-2-8X-915	915	2-8X zoom	12mm@2x 3mm@8X	31	42	173	⌀37.6

4.BEST Series 1064nm Zoom Beam Expanders

Part Number	Wavelength	Magnification	In. Aperture (mm)	Out. Aperture (mm)	Max. Lens-⌀ (mm)	Length (mm)	Thread
BEST-1-3X-1064	1064	1-3X zoom	9mm@1x 6mm@3X	30	47	87.7	M25X0.75
BEST-1-4X-1064	1064	1-4X zoom	12mm@1x 6mm@4X	31	46	155	M30X1+M43X0.5+⌀37
BEST-1-4X-1064B		1-4X zoom	12mm@1x 6mm@4X	31	49	161	M30X1+M43X0.5+⌀37
BEST-2-8X-1064		2-8X zoom	12mm@2x 3mm@8X	31	42	173	⌀37.6

BEST-W Series 9.4um & 10.6um CO2 Laser Zoom Beam Expanders

For collimation of Co2 laser power<1.5KW/cm2
Variable magnifications 2X-8X
Galilei Design
Adjustable pergence

Part No.	Magnification	Input CA (mm)	Output CA (mm)	Length (mm)
BEST-10.6-1-4X-W	1X-4X	18	48	135
BEST-10.6-2-6X-W	2X-6X	16	96	205.78-212.37
BEST-9.4-2-8X-W	2X-8X	10	36	168-172
BEST-10.6-2-8X-W	2X-8X	10	36	168-172