Low Power Beam Expanders

Special Optics low power beam expanders incorporate a high performance optical design that is optimized for use with our F-Theta Scanning lenses.  Optimum energy throughput is achievable with a maximum input aperture of 11mm.  The maximum output aperture is 47mm.  Ideal for integration for a variety of applications, these beam expanders are available in a selection of magnifications ranging from 2X – 26X.  All Special Optics beam expanders offer diffraction limited performance and have focus adjustment for collimation at various wavelengths, divergence correction, and focusing. 

Specifications:			Features
Wavefront Distortion	<0.072 RMS		Adjustable Focus for Collimation at Various Wavelengths Diffraction limited design Large input apertures High Transmission AR Coated High Damage Threshold
Transmission	> 97%
Coating Damage Threshold	500 MW/cm2
Useable Spectral Range	248 - 1550 nm

Model	Expansion Ratio	Input Aperture (mm)	Output Aperture (mm)	Length @ 1064 nm(mm)	Mechanical Drawing	Availability
50-25-2X-λ	2 X	11.0	22	89		In Stock for 820-1220nm
50-25-3X-λ	3 X	7.3	22	108		Call
50-25-4X-λ	4 X	5.5	22	118		In Stock for 1064nm
50-25-4.5X-λ	4.5 X	4.8	22	126		Call
50-25-5X-λ	5 X	4.4	22	122		Call
50-25-6X-λ	6 X	3.6	22	128		Call
50-25-7X-λ	7 X	3.1	22	131		Call
50-25-8X-λ	8 X	2.7	22	138		In Stock for 1064nm
50-25-10X-λ	10 X	2.2	22	140		Call
50-25-12X-λ	12 X	1.8	22	141		Call
50-25-18X-λ	18 X	1.3	22	145		Call
50-51-4X-λ	3.9 X	11.7	47	203		Call
50-51-7X-λ	6.8 X	6.7	47	239		Call
50-51-10X-λ	10.2 X	4.7	47	253		Call
50-51-20X-λ	20.6 X	2.3	47	267		Call

Please replace λ in model number with working wavelength when ordering.