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ERIS Spatial Light Modulator – Microdisplay Features
Drive Scheme:: Analog
Display Type: Reflective LCOS (Phase Only)
Resolution: 1920 x 1200
Pixel Pitch: 8 µm
Fill Factor: >92 %
Active Area / Diagonal 15.42 x 9.66 mm (0.717” Diagonal)
Phase Levels 256 (8-bit) or 1024 (10-bit)
Signal Formats HDMI
Input Frame Rate 60 Hz

The analog ERIS Spatial Light Modulator extends our broad SLM product range for applications with particular requirements. The SLM device shows extreme phase stability, low latency and low crosstalk.

The ERIS phase only Spatial Light Modulator is based on an 0.717″ LCOS microdisplay with a resolution of 1920×1200 pixels and 8µm pixel pitch. The SLM provides 8-bit phase levels but can also be operated in 10-bit phase mode.

The ERIS SLM is a plug & play phase modulator device and can be addressed with phase functions via standard graphics cards as an extended monitor device. Addressing can be done using the supplied Pattern Generator software or the SLM Slideshow Player software or standard image viewer software. HOLOEYE also provides an SLM Display Software Development Kit (SDK) which provides APIs (Application Programming Interface) for different programming languages.

The ERIS driver uses an HDMI interface for addressing phase functions and an USB connection to communicate with the driver (to changing the voltage vs. gray level distribution (gamma control) and dynamic range (voltage across the LC cell) in order to calibrate the SLM for different wavelengths). Besides this the driver features a trigger sync output to synchronize the device with external devices.

ERIS Analog Phase Only Spatial Light Modulator Versions:

ERIS analog LCOS Spatial Light Modulator Wavelengths Ranges

Currently we offer 2 versions of the ERIS phase SLM. One version is optimized for the visible range and one version is optimized for usage at 1550nm.

Version Wavelength Range Reflectivity Max. Phase Shift
ERIS-VIS-109 420 – 650 nm 73% average 4 Pi @ 450 nm
2.9 Pi @ 633 nm
ERIS-TELCO-110 1500 – 1600 nm 89 % 2.1 Pi @ 1550 nm

ERIS Spatial Light Modulator Kit – Contents:

ERIS LCOS Spatial Light Modulator Deliverables

ERIS Spatial Light Modulator – Scope of Supply
Phase only display incl. flex cable
Driver unit
Device mount
Display mount
Power supply + cable
USB/mini USB cable
HDMI cable
Safety instructions & quick-start guide (test polarizer inside)
USB flash drive with software package and documentation

ERIS LCOS Phase Modulator – Software Features:

ERIS LCOS SLM configuration managerThe ERIS phase only modulator devices can simply be addressed like an external monitor using the standard HDMI interface of the graphics card. No additional software or dedicated hardware is needed to operate the SLM.

The LCOS SLM device is delivered with a GUI (Graphical User Interface) based Configuration Manger software. The Configuration Manager can be used to change geometrical settings, brightness, contrast and the electrooptical response by adjusting pixel voltages. An USB interface is used for these advanced callibrations.

In addition a HOLOEYE SLM Pattern Generator software is provided with the SLM:

  • Computation of computer generated holograms (CGH) from user defined images
  • generation of SLM signals representing basic optical functions such as lenses, gratings, axicon and vortex functions
  • superposition of CGH’s with basic optical functions to combine functionalities

Besides that a special SLM Slideshow Player Software comes with the device. Also an SLM Display SDK is avaialbe for download which provides APIs (Application Programming Interface) for different programming languages to show images and data/ phase arrays directly on a HOLOEYE Spatial Light Modulator:

  • C or C++ compiler (e. g. Microsoft Visual C++ Compiler)
  • National Instruments LabVIEW 2011 and later
  • MathWorks MATLAB R2009b and later
  • Octave 7.2
  • Python 2.7 and 3.x
GAEA Software Features
Spatial Light Modulator Pconfiguration manager Software SLM Configuration Manager Geometry / Gamma Control
Spatial Light Modulator Pattern Generator Software SLM Pattern Generator Basic DOE computations; Generation of optical functions (Circular Aperture, Fresnel Zone Lens, Axicon, Single and Double Slit …); Gratings (incl. Blazed and Sinusoidal), superposition of functions (e.g. prisms, Zernike polynomials…)
Spatial Light Modulator slideshow player Software SLM Slideshow Player Plays slideshow of user defined precalculated functions or images
Spatial Light Modulator Display SDK SLM Display SDK APIs to show images and data/ phase arrays directly on using LabVIEW™, MATLAB®, Octave or Python™

Driver Dimensions (Unit: mm):

PLUTO-2 Spatial Light Modulator dimensions

Display Dimensions (Unit: mm):

ERIS LCOS Display Dimensions