WAVEPLATE

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Type of waveplates

Multiple Order Waveplate

Zero Order Waveplate

True Zero Order Waveplate

Achromatic Waveplate

Dual Wavelength Waveplate

Polarization Rotator

Waveplate

Waveplates (retardation plates or phase shifters) are made from materials which exhibit birefringence. The velocities of the extraordinary and ordinary rays through the birefringent material varies inversely with their refractive indices. This difference in velocities gives rise to a phase difference when the two beams recombine. CRYLIGHT provides half waveplate and quarter waveplate.

Half Waveplate

A half waveplate rotates linearly polarized light to any desired orientation. The rotation angle is twice the angle between the incident polarized light and the optical axis. Therefore, the half waveplate can be used as a continuously adjustable polarization rotator. The half waveplate is used to rotate the plane of polarization, electro-optic modulation and as a variable ratio beamsplitter when used in conjunction with a polarization cube.

Quarter Waveplate

When linearly polarized light is input at 45deg to the axis of a quarter waveplate, the output is circularly

polarized, similarly, input circularly polarized light is transformed into linearly polarized light. The quarter waveplate is used in creating circular polarization from linear or linear polarization from circular, ellipsometry, optical pumping, suppressing unwanted reflection and optical isolation.

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Waveplates Manufacturing Capabilities

Parameter	Multiple Order	Zero order			True order		Achromatic	Dual Wavelength
Parameter	Multiple Order	Cemented	Optical Contacted	Air-Spaced	Cemented	Single	Achromatic	Dual Wavelength
Material:	Quartz Crystal	Quartz Crystal	Quartz Crystal	Quartz Crystal	Quartz +H-K9L	Quartz Crystal	Quartz +MgF2	Quartz Crystal
Diameter(mm):	+0.0/-0.2mm	+0.0/-0.2mm	+0.0/-0.2mm	+0.0/-0.2mm	+0.0/-0.2mm	+0.0/-0.2mm	+0.0/-0.2mm	+0.0/-0.2mm
Surface Quality(S/D):	20-10	20-10	20-10	20-10	20-10	20-10	20-10	20-10
Wavefront Distortion:	L/8	L/8	L/8	L/8	L/8	L/4	L/8	L/8
Retardation:	L/300	L/300	L/300	L/300	L/300	L/300	L/300	L/300
Parallelism:	1 arc sec	3 arc sec	1 arc sec	1 arc sec	3 arc sec	1 arc sec	3 arc sec	1 arc sec
Standard Wavelength:	266, 355, 532, 633,780,808,850,980,1064,1310,1480,1550nm					980, 1064,1310, 1480, 1550nm	465-650nm 700-1000nm 1200-1650nm	1030&515nm; 1064&532nm

CRYLIGHT'S production lines of waveplate

Polishing

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Inspection

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Coating Spectrophotometer

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