Lyot Depolarizer
Optical depolarizer is a kind of optical passive
component which can transform the input polarized or partial polarized
light into non-polarization light (depolarization), it is designed
according to Lyot depolarizer's principle.
Dayoptics Lyot depolarizer consists of two crystalline
plane parallel plateswhose axes is 45o apart from each other with
optical contacted. The thickness ratio of two plates length is typically
2:1. The depolarization is created by the superposition of the circularly,
elliptically and linearly polarized light in different wavelengths.
The depolarizer is not suitable for usage in monochromatic light.
Theory Data
DOP – Degree of Polarization, DOP=1 good polarization,
DOP=0 good depolarization
Material: Calcite

DOP vs. wavelength bandwidth
Laser beam Wavelength is 1550nm, with
total length of 6mm

DOP Vs. input wavelength
(Input beam with 10nm bandwidth, total
length 6mm)
Material: YVO4

DOP vs. wavelength bandwidth
Laser beam Wavelength is 1550nm, with
total length of 6mm

DOP Vs. input wavelength
(Input beam with 10nm bandwidth, total
length 6mm)
Material: Quartz

DOP vs. wavelength bandwidth
Laser beam Wavelength is 1064nm, with
total length of 6mm

DOP Vs. input wavelength
(Input beam with 100nm bandwidth, total
length 6mm)
Specification:
| • Material: Calcite, YVO4, Quartz • Wavelength
Range: Calcite: 350-2300nm, YVO4: 400-4000nm, Quartz: 200-2300nm
• Dimension: +0/-0.2mm• Parallelism: < 20 arc second • Flatness:
λ /10 @633nm• Surface Quality: 20/10• Surface contact method:
Optical contact• Coating is available upon requirement• Mount
is available upon requirement |
Total Length: 6mm
| Part Number |
Material |
Aperature |
Total Length |
Unit Price |
DPL7005 |
CaCO3 |
5X5mm |
6mm |
$180 |
DPL7010 |
CaCO3 |
10X10mm |
6mm |
$250 |
DPL8005 |
YVO4 |
5X5mm |
6mm |
$260 |
DPL8010 |
YVO4 |
10X10mm |
6mm |
$320 |
DPL9005 |
Quartz |
5X5mm |
6mm |
$150 |
DPL9010 |
Quartz |
10X10mm |
6mm |
$220 |