Polarizing Beamsplitter (PBS) Cubes for High Energy (High Power) Applications
PBS cubes for High Energy (High Power) applications. High LIDT >15 J/cm²; Extinction ratio Ts:Tp >1000:1; Rs>99.5% Tp>97%. Price and product specifications.
Estimated Shipping Date: January 5, 2026 - January 19, 2026
* - Shopping cart pricing is based on the most recent pricing and it is NOT ORDERING, but requesting an official quotation which should typically reach You within 1-2 business days.
- Variants
- Description
- Applications
- Characteristics
- FAQ
High Energy Polarizing Beamsplitter (PBS) Cubes: key function and facts
High-Energy PBS cubes are selected for setups requiring high LIDT, low depolarization, and stable p-polarization transmission.
What distinguishes High Energy PBS cube from other PBS cubes?
PBS cubes for High Energy applications are designed to separate high power laser beam polarizations into S and P components. The p-polarized light is transmitted along the same direction as incoming unpolarized beam and s-polarization is reflected in perpendicular to incoming beam.
Manufacturing of High Energy PBS cubes
- Right-angle prisms are polished.
- Surfaces are coated:
- Enter and Exit: with multilayer dielectric anti-reflective (AR) thin film coating
- Hypotenuse: Specially designed polarizing coating
- Cubes are optically contacted without any cement (no glue!), check our guide "glue or optical contact?" to learn why this is necessary for high energy applications.
- After manufacturing cubes are tested and stocked or shipped to Alien Photonics customers.
High Energy Polarizing Beamsplitter (PBS) Cubes - Applications
High-Power laser cutting machines
Alien Photonics optically bonded PBS cubes enable precise material processing (including laser micromachining) with great efficiency and reduced thermal stress on the laser cutting machine.
Research and development (R&D) - experiments with high power lasers
As current research is aimed to more powerful lasers, high energy cubes are an excellent component for laser-material interaction under high-intensity research at universities and institutes across the world.
High power laser spectroscopy - analysis using high energy lasers
High Energy PBS cubes in spectroscopy setups enable high-power laser beams to interact with samples without compromising the systems integrity. This allows material analysis under higher temperatures.
Pulse picking modules - polarization control around Pockels cell
Used to control polarization before and after the Pockels cell, where high LIDT and minimal depolarization are needed to maintain stable switching contrast in Q-switch and pulse-picking modules.
SHG, THG and OPO/OPA stages – separating or combining pump and seed beams
High Energy PBS cubes split or combine pump and seed beams in nonlinear conversion stages (SHG, THG, OPO/OPA), where low p-polarization loss is essential to preserve conversion efficiency.
Alternative components for High Energy PBS cubes
Other Alien Photonics PBS cubes - only in very special cases
While [Glued] PBS cubes are not compatable, sometimes [bonded broadband PBS cubes] can be used, but LIDT is still several times lower.
Compact lasers and ultrafast lasers - TFP plate
Thin film plate polarizer at 45 deg and Brewster’s type TFP polarizer can be used when LOW GDD is needed. Check our guidelines, when it makes sense to substitute PBS cube with TFP plate.
High Energy Beam combiner - PBS cube or Dichroic Mirror?
While it is not so simple to just replace PBS with dichroic mirror and whole set up must be changed, this is an option to consider when building a new laser. Our comparison: PBS and Dichroic mirror might help you to choose.
High Energy PBS - Technical specifications, Product details
If you can't find product parameter in typical items (variants) table, that parameter is probably here. All parameters can be customized. Just let us know!
Substrate specifications - surface quality, flatness, tolerances and others
| Parameter | Standard component | Custom Components |
|---|---|---|
| Substrate material | UVFS or N-BK7 | Various materials |
| Angle of Incidence (AOI) | 0° | 0° |
| Flatness | λ/8~ λ/6 @ 632.8 nm | <λ/10 @ 632.8 nm |
| Surface quality | 20-10 S-D or 40-20 S-D | 10-5 S-D (acc. to MIL-PRF-13830B) |
| Beam deviation | <3 arcmin | Custom |
| Dimension tolerances | ±0.1 mm | Custom |
| Chamfers (bevels) | 0.10-0.25 mm x 45° | Custom |
High Energy PBS Coating characteristics - Extinction Ratio, Reflection, LIDT and others
| Coating Characteristics | Standard Coating | Custom Coating |
|---|---|---|
| Clear Aperture | >85% | Custom aperture |
| Extinction Ratio (Tp/Ts) | >1000:1 | Custom values available |
| Laser Induced Damage Threshold (LIDT) | >15 J/cm² @ 1064 nm, 10 ns, 10 Hz | According to your laser parameters |
| Polarization | Rs>99.5% Tp>97% (Tp>96% for UV) | Custom values available |
| AR Coating durability | acc. to MIL-C-675C | Acc. to custom requirements |
Quality certificates: COC, RoHS, Conflict Minerals and others
| Certificates | Availability |
|---|---|
| Certificate of Conformance (COC) | Yes. Available upon request. |
| RoHS | Yes. Available upon request. |
| Conflict minerals | Yes. Available upon request. |
| Other Certificates | If Available |
Feel free to ask us any specification you cannot find here by sending an email or filling a form!
Frequently Asked Questions - Price, Specifications & Delivery Time
What is the price of high energy PBS cube?
While typical high energy PBS price is about 150 €, smaller cubes can cost less. It also depends on quantity.
What is the minimal order quantity?
We do not have minimal order quantity.
What is the delivery time?
In stock High energy cubes can be shipped next day. Production could take from 2 weeks to 8 weeks. Very custom options might take 12 weeks.
What is LIDT of High Energy cubes?
15~20 J/cm² @ 1064 nm, 10 ns, 10 Hz.
Are these cubes glued or optically contacted?
Alien Photonics High Energy PBS cubes are optically contacted.
Can you offer premium quality high energy PBS cubes?
Yes, we can offer 10-5 scratch-dig and <λ/10 @ 632.8 nm custom cubes.