Overview: Quartz Lyot Depolarizer is used to convert a polarized incoming monochromatic light beam
into a pseudo-random polarized beam. Incoming light beam with
broadband source will also be converted by the depolarizer that
varies spatially and wavelength. Quartz Lyot Depolarizer is
constructed of two crystal quartz wedges. The optical axis of each
wedge is along the plane, whereas the orientation angle between the
two wedges is 45°. This depolarizer is unique as there is not
requirement in orienting the axes of the depolarizer, and is useful
if the initial polarization state of incoming light is unknown. These quartz lyot depolarizers are ideal for greater than 6mm
diameter Monochromatic Light & Broadband Light. We offer these
quarts lyot depolarizers with technique of epoxy cemented and
optically contacted. General Specifications of Quartz Lyot epolarizer: | Material | Quartz+Quartz | | Dimension Tolerance | +0/-0.2mm | | Thickness Tolerance | ±0.2mm | | Surface Quality | 60/40 | | Clear Aperture | >90% central | | Flatness | <λ/8@632.8nm | | Parallelism | <1 arc minute | | Beam Deviation | <3 arc minutes | | Coating | Uncoated | | Damage Threshold | Cemented: >500mJ/cm2, 20ns, 20Hz @1064nm
Optically contacted: >5J/cm2, 20ns, 20Hz @1064nm |
Standard Products of Quartz Lyot Depolarizer: | Part Number | Type | Dimension (mm) | Thickness
(mm) | Wavelength (nm) | | QLD-C-2507-400-2500 | Cemented | 25.4 | 7.5 | 400-2500 | | QLD-O-2507-220-2500 | Optically Contacted | 25.4 | 7.5 | 220-2500 |
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