Spatial Light Modulators – 1 x 12,288
A Spatial Light Modulator (SLM) is a device that modulates light according to a fixed spatial (pixel) pattern. SLMs have an expanding role in several optical areas where light control on a pixel‐by‐pixel basis is critical for optimum system performance. SLMs are typically used to control incident light in amplitude‐only, phase‐only or the combination (phase‐amplitude).
Meadowlark Optics (Meadowlark) manufactures and sells liquid crystal based Spatial Light Modulators for a variety of applications. Meadowlark SLMs operate in both reflection, (liquid crystal on silicon (LCoS)) and transmissive (glass‐on‐glass) modes. The 1x12,288 is based on our reflective LCoS technology.
Key features of our SLMs include high speed phase or amplitude modulation, high efficiency operation, and a complete, user‐friendly graphical software interface.
Several parameters help define SLM characteristics. Pixel pitch is defined as the center‐to‐center spacing between adjacent pixels. Interpixel gap describes the edge‐to‐edge spacing between adjacent pixels.
Interpixel gap describes the edge‐to‐edge spacing between adjacent pixels. The chart below illustrates basic specifications used to describe our reflective SLM products.
Key Features
High optical efficiency
No mechanical motion
High speed phase control
Safe, low‐voltage operation
User‐friendly graphical interface
Applications
Beam Steering
Diffractive optics
Ultra‐fast pulse shaping
Spectral tuning / processing
Programmable phase gratings
Programmable amplitude gratings
SLM Family
1920 x 1152
512 x 512
1 x 128
Hex 127
E‐Series 512 x 512
Outline drawing showing front and side views of 1x12,288 Optical Head. Dimensions in millimeters
Cross Section of Optically‐efficient Phase Only LCoS SLM
1 x 12,288 Analog Spatial Light Modulator Specifications
Resolution: 1 x 12,288
Fill Factor: 100%
Array Size: 19.66 x 19.66 mm
Pixel Pitch: 1.6 µm X 19.66 mm
Diffraction Efficiency*: 99%
Controller: Pcle 16‐bit
Wavelength
Liquid Crystal Response Time
AR Coatings (Ravg < 1%)
Model HSP12K
405 nm
N/A
N/A
532 nm
4.5 ms
400 – 850 nm
635 nm
5 ms
400 – 850 nm
785 nm
8.5 ms
600 – 1300 nm
1064 nm
15 ms
600 – 1300 nm
1550 nm
30 ms
850 – 1650 nm
*Silicon backplane, performance varies as a function of wavelength