Beam Expanders

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Optical systems that enable the expansion of a collimated beam of light.

Product	Magnification	Wavelength Range	Dimensions	Availability	Price (USD)
Fixed Magnification Beam Expander	1.5	340 - 380 nm	81.1 mm	In stock	$ 360.00
Product Code Wavelength Range 340 - 380 nm Center Wavelength 355 nm Coating AR/Transmissive V-Coating (355 nm) Reflectance < 0.25% (355 nm, Absolute) Transmittance > 99% (Minimum) Dimensions 81.1 mm Magnification 1.5 Length 81.1 mm Damage Threshold Pulsed 2.5 J/cm² (10 ns, 20 Hz, 355 nm) Input Aperture 10 mm Weight 75 g Output Aperture 23 mm Mounting Thread M27x0.5 Female M30x1 Male Substrate Fused Silica Clear Aperture 23 mm (Output) 10 mm (Input) Mount Threaded Mount, M27 x 0.5 (Output) Threaded Mount, M30 x 1 (Input) Coating Features Narrowband Angle of Incidence 0° Laser Type Nd:YAG Supplier Location New Jersey, USA See product details More from Edmund Optics
Fixed Magnification Beam Expander	10	780 - 830 nm	127.9 mm	In stock	$ 567.00
Product Code Wavelength Range 780 - 830 nm Dimensions 127.9 mm Magnification 10 Length 127.9 mm (Barrel Length, Excludes Thread) Damage Threshold Pulsed 4 J/cm² (10 ns, 20 Hz, 4 J/cm) Input Aperture Ø 1.7 mm Weight 180 g Housing Material Aluminum Supplier Location California, USA See product details More from OptoSigma
Fixed Magnification Beam Expander	2.5	532 nm	46.5 mm	Contact Supplier	$ 259.00
Product Code Wavelength Range 532 nm Center Wavelength 532 nm Transmittance > 96% Dimensions 46.5 mm Magnification 2.5 Length 46.5 mm Damage Threshold Pulsed 5 J/cm² (10 ns, 10 Hz, 1064 nm) Input Aperture 6 mm Output Aperture 21.6 mm Substrate Fused Silica Supplier Location Lithuania See product details More from EKSMA Optics
Fixed Magnification Beam Expander	5	500 - 1090 nm	91.9 mm	In stock	$ 545.00
Product Code Wavelength Range 500 - 1090 nm Coating BBAR (500 - 1090 nm) Reflectance < 1.5% (500 - 1090 nm, 0°, Average) Transmittance > 96% (Minimum) Dimensions 91.9 mm Magnification 5 Length 91.9 mm Damage Threshold Pulsed 2 J/cm² (20 ns, 20 Hz, 1064 nm) Input Aperture 7.1 mm Weight 165 g Output Aperture 25.5 mm Mounting Thread M30x1 Male, M34x0.5 Female Substrate Fused Silica Clear Aperture 25.5 mm (Output) 7.1 mm (Input) Mount Threaded Mount, M30 x 1 (Input) Threaded Mount, M34 x 0.5 (Output) Coating Features Broadband Angle of Incidence 0° Supplier Location New Jersey, USA See product details More from Edmund Optics
Fixed Magnification Beam Expander	15	1050 - 1650 nm (Coating Range)	202 mm	In stock	$ 721.06
Product Code Wavelength Range 1050 - 1650 nm (Coating Range) Coating BBAR (1050 - 1650 nm) Reflectance < 0.5% (1050 - 1650 nm) < 0.5% (per Surface) Transmittance > 96% (1064 nm) > 97% (1310 nm) > 97% (1550 nm) Dimensions 202 mm Magnification 15 Length 202 mm (7.95") Damage Threshold Pulsed 3 J/cm² (0.268 mm, 10 ns, 1 Hz, 1542 nm) Coating Features Broadband Input Beam Diameter 2.5 mm 2.9 mm (Maximum) Surface Quality 20-10 scratch-dig Supplier Location New Jersey, USA See product details More from Thorlabs
Fixed Magnification Beam Expander	4	10600 nm (Center Wavelength)	Ø 36 x 67.3 mm	1 weeks	Add to cart to request quote
Product Code Wavelength Range 10600 nm (Center Wavelength) Center Wavelength 10600 nm Diameter 36 mm Dimensions Ø 36 x 67.3 mm Magnification 4 Length 67.3 mm Shape Cylindrical Output Beam Diameter 20 mm (Maximum) Pupil Diameter 5 mm Angle of Divergence ±5° Supplier Location New Jersey, USA See product details More from Avantier Inc.
Fixed Magnification Beam Expander	12.6	450 - 700 nm	Ø 40 x 138 mm	6 - 12 weeks	Add to cart to request quote
Product Code Wavelength Range 450 - 700 nm Center Wavelength 450 - 700 nm Diameter 40 mm Dimensions Ø 40 x 138 mm Magnification 12.6 Length 138 mm (Barrel Length, Excludes Thread) Damage Threshold Pulsed 4 J/cm² (10 ns, 20 Hz, 4 J/cm) Input Aperture Ø 2.1 mm Weight 200 g Output Aperture 36 mm Shape Cylindrical Mounting Thread M22 Applications Aberration Correction Collimation Housing Material Aluminum Length Tolerance ±3 mm Supplier Location California, USA See product details More from OptoSigma
Fixed Magnification Beam Expander	5	10400 - 10600 nm	57.6 mm	In stock	$ 935.00
Product Code Wavelength Range 10400 - 10600 nm Center Wavelength 10600 nm Reflectance < 0.2% (10600 nm, Absolute) Transmittance > 99.4% Dimensions 57.6 mm Magnification 5 Length 57.6 mm Input Aperture 11.43 mm Weight 59 g Output Aperture 22.86 mm Mounting Thread M25x1 Male Substrate Zinc Selenide Clear Aperture 22.86 mm (Output) 11.43 mm (Input) Mount Threaded Mount, M25 x 1 Angle of Incidence 0° Supplier Location New Jersey, USA See product details More from Edmund Optics
Fixed Magnification Beam Expander	4	355 nm	70.5 mm	4 - 5 days	$ 275.00
Product Code Wavelength Range 355 nm Center Wavelength 355 nm Transmittance > 96% Dimensions 70.5 mm Magnification 4 Length 70.5 mm Damage Threshold Pulsed 5 J/cm² (10 ns, 10 Hz, 1064 nm) Input Aperture 6 mm Output Aperture 21.6 mm Substrate Fused Silica Supplier Location Lithuania See product details More from EKSMA Optics
Fixed Magnification Beam Expander	3	400 - 700 nm	Ø 40 x 42 mm	2 weeks	$ 441.00
Product Code Wavelength Range 400 - 700 nm Center Wavelength 400 - 700 nm Diameter 40 mm Dimensions Ø 40 x 42 mm Magnification 3 Length 42 mm (Barrel Length, Excludes Thread) Damage Threshold Pulsed 4 J/cm² (10 ns, 20 Hz, 4 J/cm) Input Aperture Ø 5.4 mm Weight 120 g Output Aperture 26 mm Shape Cylindrical Mounting Thread M22 Applications Aberration Correction Collimation Housing Material Aluminum Length Tolerance +3/-2 mm Supplier Location California, USA See product details More from OptoSigma
Fixed Magnification Beam Expander	2	532 nm (Center Wavelength)	Ø 30 x 82.68 mm	1 weeks	Add to cart to request quote
Product Code Wavelength Range 532 nm (Center Wavelength) Center Wavelength 532 nm Diameter 30 mm Dimensions Ø 30 x 82.68 mm Magnification 2 Length 82.68 mm Shape Cylindrical Output Beam Diameter 8 mm (Maximum) Pupil Diameter 4 mm Angle of Divergence ±5° Supplier Location New Jersey, USA See product details More from Avantier Inc.
Fixed Magnification Beam Expander	7	1064 nm (Center Wavelength)	Ø 60 x 179.5 mm	6 - 12 weeks	Add to cart to request quote
Product Code Wavelength Range 1064 nm (Center Wavelength) Center Wavelength 1064 nm Diameter 60 mm Dimensions Ø 60 x 179.5 mm Magnification 7 Length 179.5 mm (Barrel Length, Excludes Thread) Damage Threshold Pulsed 4 J/cm² Input Aperture Ø 5.1 mm Weight 500 g Output Aperture 48 mm Shape Cylindrical Mounting Thread M34 Applications Aberration Correction Collimation Housing Material Aluminum Length Tolerance ±4 mm Supplier Location California, USA See product details More from OptoSigma
Fixed Magnification Beam Expander	2.5	9300 nm (Center Wavelength)	Ø 28 x 57.4 mm	1 weeks	Add to cart to request quote
Product Code Wavelength Range 9300 nm (Center Wavelength) Center Wavelength 9300 nm Diameter 28 mm Dimensions Ø 28 x 57.4 mm Magnification 2.5 Length 57.4 mm Shape Cylindrical Output Beam Diameter 20 mm (Maximum) Pupil Diameter 8 mm Angle of Divergence ±5° Supplier Location New Jersey, USA See product details More from Avantier Inc.
Fixed Magnification Beam Expander	3	1064 nm (Center Wavelength)	85.5 mm	In stock	$ 806.61
Product Code Wavelength Range 1064 nm (Center Wavelength) Center Wavelength 1064 nm Reflection Wavelength 960 - 1160 nm 1000 - 1100 nm 980 - 1130 nm Coating AR/Transmissive V-Coating (1064 nm) Reflectance < 0.7% (960 - 1160 nm) < 0.2% (1000 - 1100 nm) < 0.2% (980 - 1130 nm, Average) Transmittance > 98% (1064 nm) Dimensions 85.5 mm Magnification 3 Length 85.5 mm (3.37") Damage Threshold Pulsed 20 J/cm² (0.395 mm, 10 ns, 20 Hz, 1064 nm) Substrate UV Fused Silica Coating Features Narrowband Input Beam Diameter 9 mm 10.6 mm (Maximum) Surface Quality 10-5 scratch-dig Supplier Location New Jersey, USA See product details More from Thorlabs
Fixed Magnification Beam Expander	3	700 - 12000 nm	38.1 x 72.6 x 25.4 mm	In stock	$ 650.00
Product Code Wavelength Range 700 - 12000 nm Coating Gold Reflectance > 94% (700 - 800 nm, Average) > 97% (800 - 2000 nm, Average) > 98% (2000 - 12000 nm, Average) Dimensions 38.1 x 72.6 x 25.4 mm Magnification 3 Length 72.6 mm Input Aperture 4 mm Weight 117 g Output Aperture 12 mm Substrate 6061-T6 Clear Aperture 12 mm (Output) 4 mm (Input) Angle of Incidence 0° Surface Quality 40-20 scratch-dig Height 25.4 mm (1") Surface Roughness < 5 nm (RMS) Width 38.1 mm Supplier Location New Jersey, USA See product details More from Edmund Optics
Fixed Magnification Beam Expander	6	10600 nm (Center Wavelength)	Ø 50 x 72 mm	1 weeks	Add to cart to request quote
Product Code Wavelength Range 10600 nm (Center Wavelength) Center Wavelength 10600 nm Diameter 50 mm Dimensions Ø 50 x 72 mm Magnification 6 Length 72 mm Shape Cylindrical Output Beam Diameter 22.2 mm (Maximum) Pupil Diameter 3.7 mm Angle of Divergence ±5° Supplier Location New Jersey, USA See product details More from Avantier Inc.
Fixed Magnification Beam Expander	6	500 - 532 nm	Ø 43 x 135 mm	6 - 12 weeks	$ 957.00
Product Code Wavelength Range 500 - 532 nm Center Wavelength 500 - 532 nm Transmission Wavelength 532 nm 515 nm 500 - 570 nm 600 - 700 nm Transmittance > 98% (532 nm) > 97% (515 nm) > 97% (500 - 570 nm) > 53% (600 - 700 nm) Diameter 43 mm Dimensions Ø 43 x 135 mm Magnification 6 Length 135 mm Damage Threshold Pulsed 7 J/cm² (10 ns, 20 Hz) Weight 270 g Output Aperture Ø 35 mm Shape Cylindrical Mounting Thread M22x0.75, M40.8x0.75 Clear Aperture Ø 4 mm (Input) Mount Threaded Mount, M22 x 0.75 Threaded Mount, M40.8 x 0.75 Applications Collimation Input Beam Diameter 4 mm (±1°) Supplier Location California, USA See product details More from OptoSigma
Fixed Magnification Beam Expander	20	355 nm (Center Wavelength)	267 mm	In stock	$ 1094.76
Product Code Wavelength Range 355 nm (Center Wavelength) Center Wavelength 355 nm Reflection Wavelength 325 - 380 nm 335 - 362 nm 330 - 370 nm Coating AR/Transmissive V-Coating (355 nm) Reflectance < 0.7% (325 - 380 nm) < 0.2% (335 - 362 nm) < 0.2% (330 - 370 nm, Average) Transmittance > 97% (355 nm) Dimensions 267 mm Magnification 20 Length 267 mm (10.51") Damage Threshold Pulsed 10 J/cm² (0.406 mm, 10 ns, 10 Hz, 355 nm) Substrate UV Fused Silica Coating Features Narrowband Input Beam Diameter 2.2 mm (Maximum) Surface Quality 10-5 scratch-dig Supplier Location New Jersey, USA See product details More from Thorlabs
Fixed Magnification Beam Expander	3	250 - 532 nm	83.9 mm	In stock	$ 460.00
Product Code Wavelength Range 250 - 532 nm Coating BBAR (250 - 532 nm) Reflectance < 1.25% (250 - 532 nm, 0°, Average) Transmittance > 95% (Minimum) Dimensions 83.9 mm Magnification 3 Length 83.9 mm Damage Threshold Pulsed 1 J/cm² (20 ns, 20 Hz, 532 nm) Input Aperture 8 mm Weight 77 g Output Aperture 23 mm Mounting Thread M27x0.5 Female M30x1 Male Substrate Fused Silica Clear Aperture 23 mm (Output) 8 mm (Input) Mount Threaded Mount, M27 x 0.5 (Output) Threaded Mount, M30 x 1 (Input) Coating Features Broadband Angle of Incidence 0° Supplier Location New Jersey, USA See product details More from Edmund Optics
Fixed Magnification Beam Expander	10	266 nm (Center Wavelength)	Ø 60 x 173 mm	6 - 12 weeks	Add to cart to request quote
Product Code Wavelength Range 266 nm (Center Wavelength) Center Wavelength 266 nm Diameter 60 mm Dimensions Ø 60 x 173 mm Magnification 10 Length 173 mm (Barrel Length, Excludes Thread) Damage Threshold Pulsed 1.4 J/cm² Input Aperture Ø 3.5 mm Weight 400 g Output Aperture 48 mm Shape Cylindrical Mounting Thread M34 Applications Aberration Correction Collimation Housing Material Aluminum Length Tolerance ±4 mm Supplier Location California, USA See product details More from OptoSigma