Adjustable Polarizing Beam Expander Kit for NIR Laser 1.3nm -Free Shipping

Description

This is complete optical kit that can be assembled to make a polarizing laser beam expander/Collimator.  Optical components are designed for 1.343 wavelength value but the assembly will work in the red/NIR range.
Kit is comprised of the following components:
Beam expanding element #1     (Fixed)
Beam expanding element #2     (Moveable)
Circularly polarizing element      (Sliding)
Linearly polarizer element          (Sliding)
Mounting tube for all 4 optical elements.
2 sliders and receptacles for movable/sliding elements
Mechanical mount for lens assembly.
Kit does not come with the necessary screws, they would have to be sourced elsewhere.
This assembly is especially useful to condition a laser beam to enter an Acousto-Optic module  (AOM). It allows the laser to be adjusted to have optimal collimation and polarization for maximum coupling into the AOM crystal.
Note: Kit assembly can also be used to make a regular beam expander by just using the 2 internal (#1 #2) elements without any polarizing hardware. It could also be used as polarizing element if beam expander elements are removed.   This is why it is a nice kit for optics DiYers.
These lenses come from the original OEM/Engineering inventory stock and were never used.
Specs:
Lens Material:                      Fused Silica
Design Wavelength:            1,343 nm
Assembly Outer diameter:   1.25"
Assembly Inner Diameter:    0.9"
Payment:
Paypal Only
Shipment:
Shipment will be completed within 1 business day once full payment is confirmed.
Shipment is included for customers located in the continental United States. We use USPS Priority Express.
Users in Hawaii or Alaska should include a surcharge.
We also accept worldwide shipments, but customers outside the US should contact us prior to complete
payment so we can provide you with the most reasonable shipment surcharge. This surcharge only includes the
fraction of shipment cost that comes on top of US domestic shipment fare.
We can also use a customer's UPS or FEDEX account upon request. In such case we will deduct the cost of
US
domestic shipment from the cost of the unit.
Return/Warranty:
We offer no return nor warranty on this item. Item was verified and is in excellent condition. It is sold As Is, but we can accept return/refund only if any optics element is found damaged or cracked immediately upon shipment. In such case buyer should ship the part back at their expense so we can assess the cause of the damage and provide refund or replacement.