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More >> Polarizing Beamsplitter Cube | Glass Polarizer / Depolarizer | Birefringent Crystal |

Dichroic Glass Polarizer

The Dichroic Glass Polarizer is made by a unique treatment of nanoparticles in glass. OptoCity offer high-quality polarizers for the ultraviolet, the visible and the infrared spectral range.

Specifications:

Wavefront distortion: <1/4@633nm
Beam deviation: <1 arc min.
Acceptance angle : ± 20°
Refractive index at 633 nm: 1.525 ± 0.005
Laser damage threshold:
a) Continuous wave (CW) 1 W/cm² continuous block 5 W/cm2 continuous pass
b) Pulsed 1 MW/cm² pulse peak power
Operating temperature range UV types: -20°C to +80°C; all others: -20°C to +120°C
Wavelength: UV:360-400nm, VIS:475-650nm, NIR:650-1700nm, 1600-2500nm, MIR:2000-4500nm
Exteinct Ratio: 30~50dB

Quartz Lyot Depolarizer

This DQL series of achromatic depolarizer consists of two synthetic crystal quartz plates assembled with their optic axes lying in the plane of the plates, aligned at 45deg. One plate is exactly twice the thickness of the other. Depolarization is caused by varying amounts of circular and elliptically polarized light at different wavelengths. So, this DQL depolarizer is thus not effective with monochromatic light. The two pieces quartz plates are assembled by optically contacted.

Quartz Silica Wedge Depolarizer:

This DQW series of depolarizer consists of a crystalline quartz wedge together with a compensating fused silica wedge to correct the angular deviation. The optic axis of the quartz wedge lies in the plane of the wedge and at 45 deg to the input polarization. The result is then a variable retardation plate over the aperture, which produces depolarization for all wavelengths. This DQW depolarizer is effective with monochromatic light as long as the beam size is big enough.

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. This DAQ depolarizer has much better depolarization result than DQL and DQW depolarizer.

Specifications:

Spectral range (nm): ------------------------------- 220-2600
Diamter tolerance: -------------------------------- +0.0/-0.2 mm
Surface Quality: ------------------------------------- 60/40
Flatness @ 632.8nm: ------------------------------1/8
Parallelism: -------------------------------------------<1 min
Beam deviation: -------------------------------------<3 min.
Peak transmission:----------------------------------92% (Uncoated)
Max peak power (MW/cm^2 ): ------------------300
Max cw power (W/cm^2 ):------------------------- 100
Coating:MgF2,Narrow Band or Broad Band AR coating is available.
Mount: Black anodized aluminum ring is avaiable. To order mounted depolarizers, please add the suffix M to the Part No.

RFQ PartNo Description NetPrice LeadTime
[ ? ] CP0302-700 Dichroic Glass Polarizer VIS 700 BC4 Size:3×3 T=0.22 Optical Axis Angle: 0 $0.00 5 - 7 days
[ ? ] CP1102-131 Dichroic Glass Polarizer IR 1310 BC4 HT C1310 Size:11×11 T=0.25 Optical Axis Angle:45° AR/AR1310 $0.00 5 - 7 days
[ ? ] CP1102-155 Dichroic Glass Polarizer IR 1550 BC4 HT C1550 Size:11×11 T=0.25 Optical Axis Angle:45° AR/AR1550 $0.00 5 - 7 days
[ ? ] CP1102-155A Dichroic Glass Polarizer IR 1550 BC4 HT C1550 Size:11×11 T=0.25 Optical Axis Angle:0° AR/AR1550 $0.00 5 - 7 days
[ ? ] PFP31-670 Polymer on BK7 Polarizer Size:31.75×11.43 Axis Angle45 Surface Quality:60/40 Coating:MgF2@670 $25.00 5 - 7 days
[ ? ] DPL12 Quartz Wedge Depolarizer, Wavelength: 380~800nm Size:12.7×12.7mm Surface Quality:60/40 $195 5 - 7 days
[ ? ] DPL20 Quartz Wedge Depolarizer, Wavelength: 380~800nm Size:20x20mm Surface Quality:60/40 $195 5 - 7 days
[ ? ] DQL12(M) 12.7mm Quartz Lyot Depolarizer call 5 - 7 days
[ ? ] DQL25(M) 25.4mm Quartz Lyot Depolarizer call 5 - 7 days
[ ? ] DQW12(M) 12.7mm Quartz Silica Wedge Depolarizer $195 5 - 7 days
[ ? ] DQW25(M) 25.4mm Quartz Silica Wedge Depolarizer call 5 - 7 days
[ ? ] DAQ12(M) 12.7mm Advaced Quartz Lyot Depolarizer call 5 - 7 days
[ ? ] DAQ25(M) 25.4mm Advaced Quartz Lyot Depolarizer call 5 - 7 days

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