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Low Order Waveplates

issue date:2016-3-31 15:35:44 visit frequency:1575

Low Order Waveplates

Low order waveplates are multiple order plates with a relatively small order, keeping the mentioned detrimental effects low. The low(multiple) order waveplate is designed to give a retardance of several full waves, plus the desired fraction. This results in a single, physically robust component with desired performance. However, even small variation in wavelength or temperature will result in significant changes in the desired fractional retardance.

 

Low order waveplates are much better than the multi order waveplates because of its thinner thickness(less than 0.5mm). Better temperature(38 deg C), wavelength(1.5nm) and incident angle(4.5 deg) bandwidth and high damage threshold make it widely used in common application. Also it is economical choice. Low order waveplates are made of one piece of 90-degree cut Quartz, with the proper thickness to achieve the desired retardance.


Material

Crystal Quartz

Parallelism

<1 arc second

Diameter Tolerance

+0.0/-0.2mm

Surface Quality

20/10 scratches & dig

Retardation Tolerance

<λ/500

Wavefront Distortion

λ/8@632.8nm

Clear Aperture

>90%

Coating

R<0.2% at central wavelength

Damage Threshold

>500 MW/cm2

WaveLength Range

240~2100 nm

Standard Wavelength

255, 355, 532, 632.8, 780, 808, 850,

 980, 1064, 1310, 1480, 1550 nm


Single Plate Low Order Waveplate

Diameter(mm)

Quarter Waveplate

(Part No.)

Half Waveplate

(Part No.)

10.0

WPLQ210

WPLH210

12.7

WPLQ212

WPLH212

15.0

WPLQ215

WPLH215

20.0

WPLQ220

WPLH220

25.4

WPLQ225

WPLH225

30.0

WPLQ230

WPLH230