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Waveplates

Waveplates

Wave retarders transform the polarization of light using birefringence, and include both standard waveplates and polarization rotators.  They are used in applications where optimization, control, or analysis of polarization is required: to rotate polarization, convert between linear and circular polarization, adjust ellipticity, or separate wavelengths.  We offer a line of high-performance, high damage threshold quartz retarders that includes zero-order, multiple-order, and dual-wavelength waveplates, as well as 90° polarization rotators, the choice being governed largely by operating wavelength and temperature range.

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Picture for category Multiple Order Quartz Waveplates

Used to rotate polarization (λ/2 retardation) or convert between linear and circular polarization (λ/4 retardation).  Recommended when sensitivity to wavelength and temperature is not critical.

  • High performance specifications and laser damage threshold
  • Best suited to narrow bandwidth and operating temperature range 
Picture for category Zero Order Quartz Waveplates

Compound zero-order waveplates used to rotate polarization (λ/2 retardation) or convert between linear and circular polarization (λ/4 retardation).  Recommended for use with diode, tunable and femtosecond lasers.

  • High performance specifications and laser damage threshold
  • Wide useful bandwidth
  • Excellent thermal stability
  • Choice of optically contacted, contacted in a ring mount, and air spaced versions
Picture for category Dual Wavelength Waveplates

Multiple-order waveplates used to rotate the polarization of one specific wavelength (λ/2 retardation) while the other is unchanged (λ retardation). 

  • High laser damage threshold
  • Precise control for dual wavelength sources
  • Best suited to narrow bandwidth and operating temperature range 
Picture for category 90° Polarization Rotators

Quartz rotators are used to easily rotate the linear polarization of a beam through 90°.  Simply placed in the beam at normal incidence without requiring angular adjustment.

  • Alignment-insensitive high damage threshold rotator
  • Based on optical activity of crystal quartz
  • Single wavelength operation
  • Custom wavelengths, rotation angles, and sizes available
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