Achromatic (Broadband) waveplates

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Achromatic waveplate (AWP) is a pair of crystal quartz and magnesium fluoride plates.

AR coatings	BBAR(R<0.5%) on each surface
Clear Aperture, %	>90% central area
Dimension Tolerances, mm	+0.0/-0.2 mm
Laser Damage Threshold, J/cm²	>8 J/cm² @1064 nm, 10 ns (for 650-1100 nm waveplates)
Material	High-purity crystalline quartz and magnesium fluoride
Parallelism Error, arcsec	<5
Retardation Tolerance	<λ/100 @20 °C
Surface Quality, S-D	40/20
Type	Air-spaced
Wavefront Distortion	<λ/8 @632.8 nm
Mounting	Mounted in Ø25.4x 6 mm black anodized metal mount

Description

Details

Because of difference in dispersion in these uniaxial positive crystals it is possible to calculate thickness of each plate so that birefringent phase shift in assembly changes very slowly over certain wavelength range. This is a way to obtain achromatic zero order waveplates.

Mounted achromatic (broadband) half-wave and quarter-wave retardance waveplates are available for several bands in the wavelength range of 460-1700 nm. Air-spaced construction enables to use of these waveplates for high-power applications. These waveplates are ideal for multiple wavelengths and broadband operation, due to their constant retardance over a particular broad wavelength range.

Features

Air-spaced design
Mounted in ⌀25.4 x 6 mm black anodized metal mount
Ø12 mm and Ø18 mm clear aperture selection
Broadband anti-reflective coatings (R<0.5%) on each surface
Custom size, operating wavelength range, and retardation available upon request

Applications

Linear-to-circular polarization transformation and vice versa
Linear polarization rotation
Optical isolation

Name	Clear Aperture, mm	Retardation	Wavelength, nm	Price	Quantity
2-APW-L/2-012A	>12	λ/2	450-650	US$520.00
2-APW-L/2-012B	>12	λ/2	550-750	Request a quote	✉
2-APW-L/2-012C	>12	λ/2	650-1100	US$520.00
2-APW-L/2-012D	>12	λ/2	1000-1700	US$520.00
2-APW-L/2-018A	>18	λ/2	450-650	US$795.00
2-APW-L/2-018B	>18	λ/2	550-750	Request a quote	✉
2-APW-L/2-018C	>18	λ/2	650-1100	US$795.00
2-APW-L/2-018D	>18	λ/2	1000-1700	US$795.00
2-APW-L/4-012A	>12	λ/4	450-650	US$520.00
2-APW-L/4-012B	>12	λ/4	550-750	Request a quote	✉
2-APW-L/4-012C	>12	λ/4	650-1100	US$520.00
2-APW-L/4-012D	>12	λ/4	1000-1700	US$520.00
2-APW-L/4-018A	>18	λ/4	450-650	US$795.00
2-APW-L/4-018B	>18	λ/4	550-750	Request a quote	✉
2-APW-L/4-018C	>18	λ/4	650-1100	US$795.00
2-APW-L/4-018D	>18	λ/4	1000-1700	US$795.00

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Achromatic (Broadband) waveplates

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