GAEA-2.1 Phase Only LCOS-SLM
The GAEA-2.1 Spatial Light Modulator is the highest resolution SLM on the market with extremely small pixel pitch.
GAEA-2.1 LCOS SLM – Microdisplay Features
Display Type
Reflective LCOS (Phase Only)
Resolution
max. 4160 x 2464 Pixel
Pixel Pitch
3.74 µm
Fill Factor
90 %
Active Area
15.56 x 9.22 mm (0.7″ Diagonal)
Addressing
8 Bit (256 Grey Levels)
Signal Formats
HDMI-2 – 4 K Resolution
Input Frame Rate
3840 x 2160 Pixel:
4000 x 2464 Pixel:
4160 x 2464 Pixel:
60 Hz / 180 Hz (CFS)
60 Hz / 180 Hz (CFS)
58 Hz / 174 Hz (CFS)
Max. Spatial Resolution
133.5 lp/mm
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The GAEA-2.1 phase only Spatial Light Modulator (SLM) consists of a driver unit with standard digital video interface (HDMI) and a phase only LCOS (Liquid Crystal on Silicon) microdisplay with 10 megapixel (4K) resolution (max 4160 x 2464 pixel) and 3.74 µm pixel pitch leading to an active area diagonal of 0.7”.
The GAEA-2.1 SLM is a plug & play phase modulator device and can be addressed with phase functions via standard graphics cards as an extended monitor device. 8 bit gray level patterns (= 8 bit phase levels) can be addressed. The used graphics card must support HDMI-2 and be able to provide an uncompressed output of at least 3840 x 2160 pixel resolution. Addressing can easily 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 very small pixel size of the GAEA-2.1 SLM display enables high diffraction angles:
Wavelength Period Angle Period Angle Period Angle 1550 nm 2 Pixel 11.96° 4 Pixel 5.95° 8 Pixel 2.97° 633 nm 2 Pixel 4.85° 4 Pixel 2.43° 8 Pixel 1.21° 532 nm 2 Pixel 4.08° 4 Pixel 2.04° 8 Pixel 1.02° 450 nm 2 Pixel 3.45° 4 Pixel 1.72° 8 Pixel 0.86°
Versions
HOLOEYE offers different versions of the GAEA phase only spatial light modulator. The different panel versions are optimized for the use at different wavelength ranges. Currently we offer a VIS version (420 – 650 nm), a version optimized for high speeds which can be used in RGB color field sequential (CFS) phase applications, a NIR version (650 – 1100 nm) and a version for the telecommunication waveband around 1550 nm.
Product
Reflectivity
Max. Phase Shift
Wavelength Range
Inquiry
GAEA-2.1-VIS-158 78 % 4.7π @ 450 nm
2.5π @ 633 nm 420 – 650 nm
GAEA-2.1-CFS-159 76 % min 2 Pi @ visible range 420 – 650 nm
GAEA-2.1-NIR-069B 69 % 4.4π @ 650 nm
2.4π @ 1064 nm 650 – 1100 nm
GAEA-2.1-TELCO-033 72 % 2.6π @ 1550 nm 1400 – 1700 nm
Color Field Sequential (CFS) Operation
The updated firmware of the GAEA-2.1 Spatial Light Modulator enables the use in Color Field Sequential (CFS) phase modulation mode. The driver enables addressing of 3 x 8 bit within a frame (180 Hz). The SLMs also feature an RGB light source sync connector for use with RGB color-switchable laser sources.
The GAEA-2.1-CFS-159 is optimized for fast response times for computer generated color holography.
GAEA-2.1 Spatial Light Modulator Kit – Contents:
GAEA-2.1 SLM – Scope of Supply
- 4K Phase only display incl. flex cable
- Driver unit
- Device mount
- Display mount
- Power supply + cable
- USB cable
- HDMI cable
- (CFS-light source sync cable) – optional for CFS version
- Safety instructions & quick-start guide (test polarizer inside)
- USB flash drive with software package and documentation
Software Features
The GAEA 4K 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 device is delivered with a Configuration Manager software. The Configuration Manager can be used to change geometrical settings and the electrooptical response by applying a new gamma curve or another digital drive scheme. An USB interface is used for these advanced calibrations.
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
Additionally, a special SLM Slideshow Player software is included with the device. An SLM Display SDK is also available for download, providing APIs (Application Programming Interfaces) for various programming languages to display images and data/phase arrays directly on a HOLOEYE Spatial Light Modulator.
- National Instruments LabVIEW™ 2017 and later
- MathWorks MATLAB® R2009b and later
- Octave 7.2, 8.4
- Python™ 3.x
- C or C++ compiler (e. g. Microsoft Visual C++ Compiler)
