Various Beam Expanders

Keywords: Beam Expander, 405nm, 808nm, 980nm, 1550nm, 355nm, 532nm, 106

Mar 12, 2021 View: 4016 Data Sheet

Our zoom beam expanders (or called as variable beam expander) are highly corrected 4-lens element systems with variable magnification from 1x up to 8x and Galilei-design.

Online submission 15671598018 info@SintecLaser.com

We offer 3 types of beam expanders: fixed beam expanders, zoom beam expanders and motorised beam expanders at various wavelengths of 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.

The specifications of the lenses used in the beam expanders are:

Material: BK7 fine annealed, fused silica and ZnSe depending on laser wavelength.
Diameter: -0.1mm
Thickness: ±0.1mm
Flatness: /4
Surface Quality: 60-40 scratch-dig
Coating: HR dielectric coatings R > 99%

Part number description: BEST-xxx-yy-T-AA
BEST --- BEST series beam expanders, zoom beam expanders.
xxxx------- laser wavelength: 10.6 means 10.6um, 532 means 532nm, 633 means 633nm.
yy -------- expansion ratio (magnification) in times
T ---------- type: T means adjustable/various/zoom beam expander; none means fixed beam expander.
AA -------- special purpose.
Example: BEST-10.6-3: 10.6um fixed beam expander, 3x.
BEST-10.6-3.5T: 10.6um zoom beam expander, max. 3.5x.

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.

Following is the beam expanders at the wavelengths of 405nm, 633nm, 808-980nm, 1550nm, 1850-1980nm.

(1) 405nm Beam Expanders

BEST Series 405nm Beam Expanders

Part No.	MAG	CA1(mm)	CA2(mm)	D2 (mm)	L1 (mm)
BEST-405-1.5X-W	1.5	6.0	30.0	46	85
BEST-405-2X-W	2	6.0	30.0	46	85
BEST-405-3X-W	3	6.0	30.0	46	85
BEST-405-5X-W	5	6.0	30.0	46	85
BEST-405-7X-W	7	4.2	30.0	46	85
BEST-405-10X-W	10	3.0	30.0	46	89
BEST-405-20X-W	20	1.5	30.0	46	95

(2) 633nm HeNe Laser Beam Expanders

Part No.	MAG	EP, mm	CA2, mm	L1, mm	L2, mm	OD, mm	MT IN	MT OUT
BEGK-633-2	2	8	18	59.65	11.72	30	M22X0.75	M30X1
BEGK-633-3	3	8	18	60.42	12.48	30	M22X0.75	M30X1
BEGK-633-4	4	8	18	60.06	12.12	30	M22X0.75	M30X1
BEGK-633-5	5	8	18	59.57	11.63	30	M22X0.75	M30X1
BEGK-633-6	6	8	18	59.92	11.99	30	M22X0.75	M30X1
BEGK-633-8	8	6	18	60.43	12.50	30	M22X0.75	M30X1
BEGK-633-10	10	6	18	60.65	12.71	30	M22X0.75	M30X1
BEGK-633-15	15	8	18	99.10	--	30	M22X0.75	--
BEG-633-20	20	8	30	102.19	--	45	M30X1	M43X0.75
BEGK-633-30	30	8	32	149.81	--	45	M22X0.75	M43X0.75
BEGK-633-40	40	8	100	232.6	--	112	M22X0.75	--

(3) Beam Expander Mount

The beam expander mounts are used to hold a beam expander, red pilot diode, mirrors with the screw M22x0.75mm. They are 4D adjustable for optics alignment at angles, positions.

Model: SMH-13-048
4D adjustable (4-axil adjustable) (X and Y direction travel ±2mm, X and Z direction tilting ±4 deg)
Suitable for the beam expander with a screw of M22x0.75mm
Dimension:60x60x45mm

Custom-made beam expander mounts available upon request.

Data Sheet

Online submission

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