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   Quartz Rotators

Introduction:

When a light beam in certain polarization state goes through Single Synthetic Crystal Quartz along the optical axis, its polarization vectors rotate at an angle, which is the product of the distance it travels and the rotatory power. Quartz thus can be fabricated into optical rotators. Quartz’s rotatory power is corellated with the wavelength of the light beam. The shorter the wavelength, the higher the rotating power. Quartz rotators are mostly used for light with wavelength short than 1550nm.

This material is usually right handed (dextro-rotatory), which means that as you look at the source from the image plane the polarization appears to rotate clockwise as it propagates through the crystal. Where required we can also supply left-handed (levo-rotatory) components where the direction of rotation is reversed. We can also manufacture parts from quartz crystals for particular applications.

The features of our products are

  • High damage threshold, AR coated
  • Professional supplier / manufacturer
  • Custom or large aperture

Our components are manufactured from the high optical quality synthetic materials, which offer excellent repeatability.

Specifications:

Diameter

<100mm, +/- 0.05mm

Rotation angle

45/90 degrees, +/-0.2, λ=300-1550nm

Surface Finish

Optical polished/AR coated

Orientation

Z-cut, +/- 6’

Minimum edge chamfers

<0.3, typically

Standard Items

Wavelengths: 532, 633, 1053, 1064 nm
Diameter: 12.7mm & 25.4mm (aperture 85%)
Rotation: 45o & 90o
For custom quartz rotators please contact us with details of your requirements.

Wavelength v Nominal thickness for 90° rotation

λ(nm)

193

248

488

532

633

800

1064

Thickness(mm)

0.3

0.6

2.8

3.3

4.9

8.0

14.3

Nominal Specifications

Transmitted Wavefront Distortion: ≤λ/10 at 633nm

Surface Quality: 10:5 Scratch dig

Parallelism: 0.5 arc seconds

Polarization state purity: 99% at design wavelength

AR Coating: R< 0.2%

Damage Threshold: 10J/cm2 @ 3ns pulse (1064nm)

Diameter: Up to 100mm, larger with material availability

 



Add: P.O 733, Room 306, Nanfulou of Jianshebudayuan, Ganjiakou,Haidian District., Beijing 100018, P.R.China.
Fax: 86-10-65492173. E-Mail: sales@brightcrystals.com info@brightcrystals.com