LBTEK-Polymer Beamsplitting DOE

Product Description

Liquid Crystal Polymer/N-BK7 or UVFS Window, Sandwich Planar Structure
Liquid Crystal Molecular Fast Axis Exhibits Different Periodic Arrangements According to Beamsplitting Design, λ/2 Retardance
Achieves One-Dimensional or Two-Dimensional, Odd or Even Uniform Beamsplitting
High Diffraction Efficiency, High Beamsplitting Uniformity, High Separation Angle Accuracy, Low Spurious Diffraction Order Noise
Operating Wavelengths: 532 nm, 1064 nm; Splitting Modes: 1 × 3, 1 × 9, 2 × 3
Supports Flexible Customization of Specifications

LBTEK Polymer Beamsplitting DOE is fabricated from N-BK7 or UVFS glass substrates and liquid crystal polymer (LCP) materials, forming a typical sandwich planar structure and operating as a single-wavelength device. The phase structure of the polymer beamsplitting DOE is designed based on diffractive optics principles according to requirements such as the target splitting pattern, spacing between split spots, and beam separation angle, achieving the desired beamsplitting effect by redistributing energy among corresponding diffraction orders. Compared with cascaded grating beamsplitters, the polymer beamsplitting DOE has no requirement on the polarization state of the incident beam and can achieve odd-number beamsplitting. Compared with Dammann grating beamsplitters, the polymer beamsplitting DOE offers superior diffraction efficiency and beamsplitting spot uniformity. Compared with conventional etched DOEs, the polymer beamsplitting DOE more readily achieves multi-order phase variations, thereby reaching higher diffraction efficiency with significantly reduced fabrication complexity. Therefore, thanks to its advantages of high diffraction efficiency, high beamsplitting uniformity, high separation angle accuracy, low spurious diffraction order noise, and simple fabrication, the polymer beamsplitting DOE is suitable for various applications including parallel laser processing, optical sensing, and medical aesthetics. LBTEK offers standard polymer beamsplitting DOEs with operating wavelengths of 532 nm and 1064 nm, with splitting modes of 1 × 3, 1 × 9, and 2 × 3 available, and substrate materials of N-BK7 and UVFS optional. In addition to standard products, LBTEK also provides flexible customization of specifications. For specific customization requirements, please contact LBTEK Technical Support.

Diagram

Attributes

Clear ApertureØ21.5 mm

Surface Quality (Scratch/Dig)40/20

ReflectivityRavg < 0.5% (0° incidence)

Beam splitting uniformity> 95%

Polymer Beamsplitting DOE, N-BK7 Substrate, 1D Beamsplitting

Liquid Crystal Polymer/N-BK7 Window
Clear Aperture: Ø21.5 mm
Achieve 1 × 3 and 1 × 9 Uniform Beamsplitting

LBTEK One-Dimensional Polymer Beamsplitting DOE is fabricated on a 1.6 mm-thick N-BK7 window, featuring a dual-substrate structure with a single-layer liquid crystal polymer film. It provides a uniform λ/2 retardance across the entire clear aperture. Standard products achieve 1 × 3 and 1 × 9 one-dimensional beamsplitting. The product is a bare optic without a mechanical housing and can be used with a 1-inch rotation mount to adjust the geometric orientation of the split beams.

Phase Map of 1 × 3, 1 × 9 One-Dimensional Polymer Beamsplitting DOE

Product Model	Operating Wavelength	Beam splitting mode	Separation angle	Unit Price	Lead Time
LCBS25-532-0103-000050	532 nm	1 × 3	0.5°	$1,090.38	4 weeks	Add Cart
LCBS25-532-0109-000015	532 nm	1 × 9	0.15°	$1,090.38	5 weeks	Add Cart
LCBS25-1064-0103-000100	1064 nm	1 × 3	1°	$1,090.38	4 weeks	Add Cart
LCBS25-1064-0109-000030	1064 nm	1 × 9	0.3°	$1,090.38	5 weeks	Add Cart

Polymer Beamsplitting DOE, N-BK7 Substrate, 2D Beamsplitting

Liquid Crystal Polymer/N-BK7 Window
Clear Aperture: Ø21.5 mm
Achieve 2 × 3 Uniform Beamsplitting

LBTEK Two-Dimensional Polymer Beamsplitting DOE is fabricated on a 1.6 mm-thick N-BK7 window, featuring a dual-substrate structure with a single-layer liquid crystal polymer film. It provides a uniform λ/2 retardance across the entire clear aperture. Standard products achieve 2 × 3 two-dimensional beamsplitting. The product is a bare optic without a mechanical housing and can be used with a 1-inch rotation mount to adjust the geometric orientation of the split beams.

Phase Map of 2 × 3 Two-Dimensional Polymer Beamsplitting DOE

	Product Model	Operating Wavelength	Beam splitting mode	Separation angle	File	Unit Price	Compare	Lead Time
	LCBS25-532-0203-025015	532 nm	2 × 3	0.25° × 0.15°		$1,362.97		5 weeks	Add Cart
	LCBS25-1064-0203-050030	1064 nm	2 × 3	0.5° × 0.3°		$1,362.97		5 weeks	Add Cart

Polymer Beamsplitting DOE, UVFS Substrate, 1D Beamsplitting

Liquid Crystal Polymer/UVFS Window
Clear Aperture: Ø21.5 mm
Achieve 1 × 3 and 1 × 9 Uniform Beamsplitting

LBTEK One-Dimensional Polymer Beamsplitting DOE is fabricated on a 3 mm-thick fused silica window, featuring a dual-substrate structure with a single-layer liquid crystal polymer film. It provides a uniform λ/2 retardance across the entire clear aperture. Standard products achieve 1 × 3 and 1 × 9 one-dimensional beamsplitting. The product is a bare optic without a mechanical housing and can be used with a 1-inch rotation mount to adjust the geometric orientation of the split beams.

Phase Map of 1 × 3, 1 × 9 One-Dimensional Polymer Beamsplitting DOE

Product Model	Operating Wavelength	Beam splitting mode	Separation angle	Unit Price	Lead Time
LCBS25H-532-0103-000050	532 nm	1 × 3	0.5°	$1,308.42	4 weeks	Add Cart
LCBS25H-532-0109-000015	532 nm	1 × 9	0.15°	$1,308.42	5 weeks	Add Cart
LCBS25H-1064-0103-000100	1064 nm	1 × 3	1°	$1,308.42	4 weeks	Add Cart
LCBS25H-1064-0109-000030	1064 nm	1 × 9	0.3°	$1,308.42	5 weeks	Add Cart

Polymer Beamsplitting DOE, UVFS Substrate, 2D Beamsplitting

Liquid Crystal Polymer/UVFS Window
Clear Aperture: Ø21.5 mm
Achieve 2 × 3 Uniform Beamsplitting

LBTEK Two-Dimensional Polymer Beamsplitting DOE is fabricated on a 3 mm-thick fused silica window, featuring a dual-substrate structure with a single-layer liquid crystal polymer film. It provides a uniform λ/2 retardance across the entire clear aperture. Standard products achieve 2 × 3 two-dimensional beamsplitting. The product is a bare optic without a mechanical housing and can be used with a 1-inch rotation mount to adjust the geometric orientation of the split beams.

Phase Map of 2 × 3 Two-Dimensional Polymer Beamsplitting DOE

	Product Model	Operating Wavelength	Beam splitting mode	Separation angle	File	Unit Price	Compare	Lead Time
	LCBS25H-532-0203-025015	532 nm	2 × 3	0.25° × 0.15°		$1,636.38		5 weeks	Add Cart
	LCBS25H-1064-0203-050030	1064 nm	2 × 3	0.5° × 0.3°		$1,636.38		5 weeks	Add Cart