Requirements

There are several basic requirements for operating the X10468 LCOS-SLM. These are:

  • A personal computer with 2 DVI output ports
  • A graphics card compatible with 2 monitors (1024 x 768 or higher + 800 x 600)
  • A polarized laser: A small laser diode up to a large high-power laser system can be used matching the wavelength range and the type of the LCOS-SLM, e.g.:
    • Continuous wave (CW) DPSS- and diode lasers
    • YAG (high-power CW or ps-/ns-pulsed)
    • Ti: Sa lasers (fs) and amplifier systems
  • Some standard off the shelf optical elements (lenses, etc)
  • Some beam expanding optics, spatial filter and an (iris-)aperture (~12mm)
  • A screen or CCD camera to observe the diffracted patter

For enhanced operation and the calculation of Computer Generated Holograms (CGHs), a high end computer and graphic cards should be used. Examples of basic optical setups are shown below.

Please contact our team for further detailed information and help.

Typical experimental configuration

Three examples of optical system set-ups are shown below. Example 1 is an optical system using a half-mirror and examples 2 and 3 show an oblique-incidence optical system. In examples 2 and 3, the amount of light loss due to the half-mirror is reduced.

Example 1

Example 2 (incident angle should be 10 degrees or less and the incident light should be horizontally polarized)

Example 3

Technology note

All our LCOS-SLMs are factory tested and linearity as well as non-flatness data are measured for each device individually. We provide you with a fully corrected device which is ready to be used straight away in your experiments.

Flatness

Employing the non-flatness correction image, a unique wavefront flatness with a standard deviation (SD) of typ. 0,0036 π rad is achieved.

Linearity

With the unique Phase Linearity correction employing a pixel-dependent Look Up Table (LUT) and 12 bit control of the LCOS-Chip, an average linearity error of 0.0057 π radians is achieved.

Phase Noise/Flickering

The X10468 LCOS-SLMs are controlled by a highly stable driving voltage. Thus the orientation of the LC-molecules is stable and phase noise and intensity flickering is minimal. Please ask our experts for further details on this topic.

X10468 model number   -01 -02 -03 -04 -05 -06 -07 -08
Wavelength (nm)   633 785 1064 532 407 633 1064 1550
Phase Stability (π rad.) at maximum voltage Peak to peak 0.011 0.002 0.004 0.018 0.009 0.007 0.007 0.004
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