Half Waveplates, Crystalline Quartz

Manufacturer's part number :

2-CPW-LO-L/2

Manufacturer Altechna

Altechna

Description :

Waveplates 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. At any specific wavelength the phase difference is governed by the thickness of the retarder - waveplate. Half (λ/2) Waveplate. A linearly polarized beam incident on a half wave crystal quartz waveplate emerges as a linearly polarized beam but rotated such that its angle to the optical axis is twice that of the incident beam. Therefore, half-waveplates can be used as continuously adjustable polarization rotators. Half-waveplates are used to rotate the plane of polarization, electro-optic modulation and as a variable ratio beamsplitter when used in conjunction with a polarization cube.


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    Features

  • Material Crystalline quartz
  • Laser damage threshold 5 J/cm² 10 ns pulsed at 1064 nm typical
  • Clear aperture: >18mm
  • Mounted in Ø 25.4x6 mm black anodized metal mount
  • Wavelengths: 266-343-355-400-473-515-532-633-800-852-940-980-1030-1064-1550nm
  • Low order and Zero order waveplates
  • Benefits

  • Low order waveplates: Good for single wavelength use
  • Low order waveplates: Sensitive to temperature changes
  • Zero order waveplates: Low wavelength dependence
  • Zero order waveplates: Low temperature dependence
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