X10468_15 Datasheet, PDF (1/9 Pages) Hamamatsu Corporation – LCOS-SLM (Liquid Crystal on Silicon - Spatial Light Modulator)

LCOS-SLM (Liquid Crystal on Silicon - Spatial Light Modulator)
X10468/X13267/X13138 series
Control your light !
Shape your beam !
Improve your image !
The X10468/X13267/X13138 series devices are a reflective type of pure phase Spatial Light Modulators (SLMs), based on Liquid
Crystal on Silicon (LCOS) technology in which liquid crystal (LC) is controlled by a direct and accurate voltage, and can modulate a
wavefront of light beam. The LCOS-SLMs are carefully designed to achieve high light utilization efficiency from various points of view,
such as reflectivity, aperture ratio and diffraction noise due to the pixel structure.
The X10468/X13267/X13138 series can be controlled via a PC using the Digital Video Interface (DVI), which is a standard interface
for PC displays. The distortions in the LCOS chip, such as wavefront distortion and non-linear response of the LC, are efficiently com-
pensated by the controller.
Easy PC control, precise and linear phase modulation characteristics can be accomplished with the X10468/X13267/X13138 series.
They can also provide high diffraction efficiency and high light utilization efficiency.
Features
Pure, linear and precise phase control
High light utilization efficiency
High diffraction efficiency
High power handling capability
Ease of use (DVI compatible)
Reflective type
Applications
Laser material processing
Optical manipulation
Wavefront correction
Pulse shaping
Optical testing
LCOS chip inside the head
Principle of modulation
The LCOS chip has a parallel-aligned nematic liquid crystal layer to modu-
late light. It only changes the phase of light without any change of in-
tensity and rotation of polarization state. Phase modulation is changed
according to the alignment of the LC. The LC alignment is controlled, pixel
by pixel, using a CMOS backplane and a DVI signal via a PC.
Input readout light
LCOS chip
PC
DVI signal
POWER
LCOS-SLM CONTROLLER
POWER OUTPUT ERROR
RESET
Controller
Reflected light ^LC CMOS
Modulated only phase !
KACCC0638EA
www.hamamatsu.com
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