Depolarizer

Advaced Quartz Lyot Depolarizer

Advaced Quartz Lyot Depolarizer

This DAQ series of depolarizers is an improved Quartz Lyot Depolarizer, which consists of two quartz crystal wedges with their optic axes lying in the plane of the plates, and aligned at 45° with each other. Is has the advantages of both Lyot and Wedge Depolarizer. One plate of the two quartz wedge is exactly twice the thickness of the other. The result is then a variable retardation plate over the aperture,which produces depolarization for all wavelengths. By this specially designed structure, we can get much better depolarization result than DQL and DQW type.

This DAQ depolarizer is also effective with monochromatic light.

Standard Specifications:

Spectral rang (nm): ---------------------------------- 220-1100, 1100-2600
Diamter tolerance: ----------------------------------- +0.0/-0.2 mm
Surface Quality: -------------------------------------- 60/40
Flatness @ 632.8nm: ------------------------------- λ/8
Parallelism: -------------------------------------------- <1 min
Beam deviation: -------------------------------------- <3 min
Chip: ---------------------------------------------------- <0.2 mm
Chamfer (bevel): ------------------------------------- <0.5 mm x 45 deg
Peak transmission (%): ---------------------------- 92 (Uncoated)
Coating: ------------------------------------------------ uncoated
Mountter: ---------------------------------------------- unmounted
Max peak power (MW/cm2): --------------------- 300
Max cw power (W/cm2): -------------------------- 100
 


 

Coating: MgF2, Narrow Band or Broad Band AR coating are all available.
Mounter: Black anodized aluminum ring is avaiable. To order mounted depolarizers,simply add the Suffix M to the part no. 


P/N#
                                          Aperture          
Thickness(mm)

A (mm)

B (mm)
DAQ10
10.0
9.0
5
DAQ12
12.7
11.5
5
DAQ15
15.0
13.5
5
DAQ20
20.0
18.0
5
DAQ25
25.4
22.0
5

   PDF to download