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Meller Optics Inc.
Map120 Corliss St.
Providence, RI 02904
United States
Phone: +1 800-821-0180

Sapphire Waveplates

Photonics Spectra
Feb 2017
Sapphire WaveplatesMeller Optics Inc. has announced Sapphire Waveplates that extend IR polarization control into the IR, beyond fused silica optical waveplates.

The devices feature Moh 9 hardness, making them highly resistant to chemicals, scratching, shock and temperature fluctuations. Designed to change the polarization state of a laser beam from linear to circular and vice versa in high-power IR and visible lasers, accuracy is assured by ultra-precise, in-house goniometric validation of their crystallographic orientation and location.

Offered in custom sizes from 10 to 30 mm in A or M plane configurations, the Sapphire Waveplates can be made as thin as 0.4 mm and <25 mm in diameter with transmitted wavefront of >λ/10 at 6.32.8 nm. They are antireflection coated on both sides and provide λ/4 and λ/2 retardation with tolerances of > λ/300 at 632 µm, > λ/400 1.06 µm and > λ/1000 at 2.94 µm.

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