Broadband Polarizing
(PBS) Cubes working schema

Broadband Polarizing Beamsplitter (PBS) Cubes for wide range and multi-wavelength applications

BBPBS cubes split broad range of lineary polarized light into its S and P components. Custom wavelength ranges, sizes, glued or opticaly contacted, other characteristics available upon request.

Estimated Shipping Date: December 24, 2024 - January 7, 2025

* - 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

Predefined variants of product to view, select and fill parameters or add product directly to cart.
Material	Cube Dimensions	Extinction ratio (Tp:Ts)	Reflection (Rs)	Transmission (Tp)	Wavelength (Range)	Flatness/TWFD	LIDT (10 ns, 10 Hz)	Surface Quality
N-BK7 or eq.	25.4x25.4x25.4 mm	>250:1	>99% (avg.)	>92% (avg.)	450-650 nm	λ/4	>0.3 J/cm² @ 1064 nm	40-20 S-D
N-BK7 or eq.	25.4x25.4x25.4 mm	>250:1	>99% (avg.)	>92% (avg.)	450-650 nm	λ/4	>3 J/cm² @ 1064 nm	40-20 S-D
N-BK7 or eq.	25.4x25.4x25.4 mm	>250:1	>99% (avg.)	>92% (avg.)	650-900 nm	λ/4	>0.3 J/cm² @ 1064 nm	40-20 S-D
N-BK7 or eq.	25.4x25.4x25.4 mm	>250:1	>99% (avg.)	>92% (avg.)	650-900 nm	λ/4	>3 J/cm² @ 1064 nm	40-20 S-D
N-BK7 or eq.	25.4x25.4x25.4 mm	>250:1	>99% (avg.)	>92% (avg.)	900-1200	λ/4	>0.3 J/cm² @ 1064 nm	40-20 S-D
N-BK7 or eq.	25.4x25.4x25.4 mm	>250:1	>99% (avg.)	>92% (avg.)	900-1200	λ/4	>3 J/cm² @ 1064 nm	40-20 S-D
N-BK7 or eq.	25.4x25.4x25.4 mm	>250:1	>99% (avg.)	>92% (avg.)	1200-1600	λ/4	>0.3 J/cm² @ 1064 nm	40-20 S-D
N-BK7 or eq.	25.4x25.4x25.4 mm	>250:1	>99% (avg.)	>92% (avg.)	1200-1600	λ/4	>3 J/cm² @ 1064 nm	40-20 S-D

Broadband Polarizing Beamsplitter (PBS) Cube: key functions, production and alternatives

What is Broadband Polarizing Beamsplitter (PBS) Cube?

BBPBS cubes split linearly polarized or unpolarized light into its components (S-pol. is reflected perpendicularly and P-pol is transmitted with the same direction as incoming beam). These beamsplitters main diference and advantage over sandard PBS cubes and high energy PBS cubes is the broad range of wavelengths.

How BBPBS cubes are manufactured?

Broadband polarizing beam splitter (PBS) cubes are produced in very similar way to Non-polarizing beamsplitter cubes and is almost the same as standard PBS or High Energy PBS cubes, including polishing and inspecting the prisms. The main difference is in the coating. On one of the right-angle prisms broadband polarizing coating is deposited allowing wide range of wavelengths to be polarized when passing through. Also, enter-exit (input-output) surfaces are coated with broad band anti-reflective (AR) coating further improving the efficiency. After that prisms are cemented or optically bonded forming high performance broad band polarizing beamsplitter cube.

Alternatives to BBPBS cubes

Broadband PBS cubes can be interchanged with broadband 45-degree TFP polarizer and with some adjustments with broadband Brewster TFP. When comparing to Standard and High Energy PBS cubes, Alien Photonics BBPBS cubes can cover broad wavelength rage. However, typically BBPBS cubes have lower Laser Induced Damage Threshold (LIDT) characteristic. Anyways, this parameter can be improved by optically bonding right-angle prisms instead of using cement (epoxy glue) or choosing right coating materials.

Broadband Polarizing Beamsplitter (PBS) Cubes for tunable lasers, spectroscopy, research, imaging and other devices

PBS cubes for tunable lasers

BBPBS cubes can split or combine different wavelengths based on polarization. This feature enables precise wavelength and polarization selection in tunable and multi-wavelength laser systems.

Broadband PBS Cubes for spectroscopy

Alien Photonics BBPBS cubes are used in spectroscopy instruments to analyze light from a wide range of wavelengths. These cubes enable comprehensive chemical and material analysis with polarized spectra.

Broadband Polarizing Beamsplitter (PBS) Cubes for research and development (R&D)

BBPBS cubes allows scientists in laboratories to conduct various experiments involving polarization over wide spectral range, quantum optics, non-linear optic and other researches.

Multispectral cameras with Broadband PBS Cubes

In multispectral imaging devices, BBPBS cubes split polarized light into components across different spectral bands. This effect enhances image contrast and detail, which is especially important in remote sensing, detailed analysis and monitoring applications.

Typical Characteristics of Broadband Polarizing Beamsplitter (PBS) cube

If you cant find product parameter in typical items table, that parameter is probably here. All parameters can be customized. Just let us know!

Parameter	Standard component
Prism/Cube Characteristics	Value
Substrate material	UVFS for UV nm; N-BK7 or eq. for other wavelengths
Angle of Incidence (AOI)	0°
Flatness	λ/8~ λ/6 @ 632.8 nm (depending on size)
Surface quality	20-10 S-D or 40-20 S-D (depending on size, acc. to MIL-PRF-13830B)
Beam deviation	<3 arcmin
Dimension tolerances	±0.1 mm
Chamfers (bevels)	0.10-0.25 mm x 45°
Coating Characteristics	Value
Clear Aperture	>85%
Extinction Ratio (Tp/Ts)	>250:1
Laser Induced Damage Threshold (LIDT)	>0.25-5-15 J/cm² @ 1064 nm, 10 ns, 10 Hz
Polarization	Rs>99.5% Tp>97% (Tp>96% for UV)
Coating durability	acc. to MIL-C-675C
Certificates	Availability
Certificate of Conformance (COC)	Yes. Available upon request.
RoHS	Yes. Available upon request.
Conflict minerals	Yes. Available upon request.

Still having trouble finding your parameter ? Feel free to ask us by sending an email of filling a form. Also, dont worry if you forgot ask for it! Alien Photonics official quotations (formal offers) include the values of requested parameters and more.