Circular Polarizers

Optical systems that combine a linear polarized filter and a quarter-wave plate to convert unpolarized light into circularly polarized light.

Product	Wavelength Range	Substrate	Diameter	Availability	Price (USD)
Left-Handed Circular Polarizer	< 350 - 700 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 350 - 700 nm (0.5%, Coating Range) Center Wavelength 405 nm Reflectance < 0.5% (350 - 700 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 0.3 J/cm² (0.75 mm, 10 ns, 10 Hz, 532 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error λ/4 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	< 650 - 1050 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 650 - 1050 nm (0.5%, Coating Range) Center Wavelength 830 nm Reflectance < 0.5% (650 - 1050 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 0.3 J/cm² (0.08 mm, 10 ns, 10 Hz, 810 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error 3λ/2 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	< 350 - 700 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 350 - 700 nm (0.5%, Coating Range) Center Wavelength 488 nm Reflectance < 0.5% (350 - 700 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 0.3 J/cm² (0.75 mm, 10 ns, 10 Hz, 532 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error λ/4 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	< 1050 - 1700 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 1050 - 1700 nm (0.5%, Coating Range) Center Wavelength 1064 nm Reflectance < 0.5% (1050 - 1700 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 2 J/cm² (0.242 mm, 10 ns, 10 Hz, 1540 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error λ/4 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	< 350 - 700 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 350 - 700 nm (0.5%, Coating Range) Center Wavelength 633 nm Reflectance < 0.5% (350 - 700 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 0.3 J/cm² (0.75 mm, 10 ns, 10 Hz, 532 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error λ/4 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	< 650 - 1050 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	Contact Supplier	$ 321.92
Product Code Wavelength Range < 650 - 1050 nm (0.5%, Coating Range) Center Wavelength 808 nm Reflectance < 0.5% (650 - 1050 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 0.3 J/cm² (0.08 mm, 10 ns, 10 Hz, 810 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error 3λ/2 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	< 350 - 700 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 350 - 700 nm (0.5%, Coating Range) Center Wavelength 532 nm Reflectance < 0.5% (350 - 700 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 0.3 J/cm² (0.75 mm, 10 ns, 10 Hz, 532 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error λ/4 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	< 1050 - 1700 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 1050 - 1700 nm (0.5%, Coating Range) Center Wavelength 1310 nm Reflectance < 0.5% (1050 - 1700 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 2 J/cm² (0.242 mm, 10 ns, 10 Hz, 1540 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error λ/4 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	< 350 - 700 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 350 - 700 nm (0.5%, Coating Range) Center Wavelength 670 nm Reflectance < 0.5% (350 - 700 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 0.3 J/cm² (0.75 mm, 10 ns, 10 Hz, 532 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error λ/4 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	400 - 700 nm	PMMA	12.5 mm	In stock	$ 23.00
Product Code Wavelength Range 400 - 700 nm Transmittance 42% Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 2.295 mm Substrate PMMA Operating Temperature -40 to 80 °C Thickness Tolerance ±0.24 mm Shape Round Supplier Location New Jersey, USA See product details More from Edmund Optics
Left-Handed Circular Polarizer	< 650 - 1050 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 650 - 1050 nm (0.5%, Coating Range) Center Wavelength 780 nm Reflectance < 0.5% (650 - 1050 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 0.3 J/cm² (0.08 mm, 10 ns, 10 Hz, 810 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error 3λ/2 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	400 - 700 nm	PMMA	50 mm	In stock	$ 61.00
Product Code Wavelength Range 400 - 700 nm Transmittance 42% Diameter 50 mm Dimensions Ø 50 mm Thickness 2.295 mm Substrate PMMA Operating Temperature -40 to 80 °C Thickness Tolerance ±0.24 mm Shape Round Supplier Location New Jersey, USA See product details More from Edmund Optics
Left-Handed Circular Polarizer	400 - 700 nm	PMMA	50.8 mm (2")	In stock	$ 61.00
Product Code Wavelength Range 400 - 700 nm Transmittance 42% Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 2.295 mm Substrate PMMA Operating Temperature -40 to 80 °C Thickness Tolerance ±0.24 mm Shape Round Supplier Location New Jersey, USA See product details More from Edmund Optics
Left-Handed Circular Polarizer	< 1050 - 1700 nm (0.5%, Coating Range)	N-BK7	25.4 mm (1")	In stock	$ 321.92
Product Code Wavelength Range < 1050 - 1700 nm (0.5%, Coating Range) Center Wavelength 1550 nm Reflectance < 0.5% (1050 - 1700 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3.5 mm (0.14") Substrate N-BK7 Angle of Incidence < 5° Beam Deviation < 20' Clear Aperture > 22.86 mm Damage Threshold CW 0.001 kW/cm² Damage Threshold Pulsed 2 J/cm² (0.242 mm, 10 ns, 10 Hz, 1540 nm) Extinction Ratio > 1000:1 Surface Quality 60-40 scratch-dig Transmitted Wavefront Error λ/4 (633 nm) Shape Round Ellipticity >43.5° Supplier Location New Jersey, USA See product details More from Thorlabs
Left-Handed Circular Polarizer	400 - 700 nm	PMMA	25 mm	In stock	$ 34.00
Product Code Wavelength Range 400 - 700 nm Transmittance 42% Diameter 25 mm Dimensions Ø 25 mm Thickness 2.295 mm Substrate PMMA Operating Temperature -40 to 80 °C Thickness Tolerance ±0.24 mm Shape Round Supplier Location New Jersey, USA See product details More from Edmund Optics
Left-Handed Circular Polarizer	400 - 700 nm	PMMA	20 mm	In stock	$ 30.00
Product Code Wavelength Range 400 - 700 nm Transmittance 42% Diameter 20 mm Dimensions Ø 20 mm Thickness 2.295 mm Substrate PMMA Operating Temperature -40 to 80 °C Thickness Tolerance ±0.24 mm Shape Round Supplier Location New Jersey, USA See product details More from Edmund Optics
Left-Handed Circular Polarizer	400 - 700 nm	PMMA	25.4 mm (1")	In stock	$ 34.00
Product Code Wavelength Range 400 - 700 nm Transmittance 42% Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 2.295 mm Substrate PMMA Operating Temperature -40 to 80 °C Thickness Tolerance ±0.24 mm Shape Round Supplier Location New Jersey, USA See product details More from Edmund Optics