LBTEK-Active Liquid Crystal Grating

Product Description

UV-Grade Fused Silica / ITO Glass
Fast Axis Orientation of LC Molecules Varies Periodically and Continuously Along the X-Direction
Cell Gap: 3/7/12 μm Available; Grating Period Selectable
Compatible with Voltage Controller LCVRC-2K25; Supports Flexible Customization of Specifications

LBTEK Active Liquid Crystal Grating (ALCG) is fabricated from ITO conductive glass and liquid crystal material, featuring a sandwich structure consisting of front and rear ITO glass substrates with a liquid crystal layer in between. The fast axis orientation of the LC molecules varies periodically and continuously along the x-direction. Similar to LBTEK Polarization Gratings, the retardance of the liquid crystal layer can be adjusted by varying the applied voltage across the ALCG, thereby optimizing the ±1st-order diffraction efficiency within a certain wavelength range. LBTEK offers operating wavelengths λ from 500 to 1550 nm, along with flexible customization of specifications including grating period and clear aperture for diverse applications. For further details, please contact LBTEK Technical Support.

Diagram

Active Liquid Crystal Grating

Clear Aperture: 8 mm × 8 mm
Diffraction Efficiency > 90%
AR Coating Available for 500–700 nm, 700–1100 nm, or 1100–1700 nm

Under the control of an external AC voltage (DC voltage is not applicable), the LBTEK Active Liquid Crystal Grating enables tunable diffraction efficiency. It features a clear aperture of 8 mm × 8 mm, with customizable LC cell gap and grating period.

Active Liquid Crystal Grating

Product Model	Box thickness tolerance	Box thickness uniformity	Diffraction efficiency	Unit Price	Lead Time
LCCPG03-70-0808	±10%	5%	> 90%	Contact	4 weeks	Add Cart
LCCPG12-108-0808	±10%	±5%	> 90%	Contact	6 weeks	Add Cart
LCCPG07-108-0808	±10%	±5%	> 90%	Contact	4 weeks	Add Cart