Transmissive Spatial Light Modulator
KEY FEATURES
High transmission
Compact optical housing design
Computer controlled
Phase or amplitude modulation
DESCRIPTION
Hex Spatial Light Modulator - Our transmissive hexagonal array SLMs are designed for adaptive optics applications. The two dimensional array of Liquid Crystal Variable Retarders acts as a real time programmable phase mask for wavefront correction of a linear polarized source.
Unwanted aberration effects are removed by introducing the opposite phase shift through the Hex SLM. The most common applications involve high-resolution imaging where viewing through an aberrant medium is unavoidable. Examples include astronomical imaging with ground-based telescopes and medical imaging through body fluids. High-energy laser users also benefit from active phase compensation for beam profile correction.
Linear Array Spatial Light Modulator - The transmissive linear array can be used to alter the temporal profile of femtosecond light pulses via computer control. These SLMs find use in other applications including Hadamard spectroscopy, optical data storage and wavefront compensation.
Spatial Light Modulator Controller
Meadowlark Optics Spatial Light Modulator Controller allows for independent voltage control of up to 128 liquid crystal cells or pixels.
The SLM Controller connects via USB cable to a Windows™ based computer. Supplied software allows for convenient setting of individual pixel retardance and for the programming of retardance profiles across a pixelated device. Custom software can be written using the included LabVIEW™ Virtual Instrument Library to allow for integration into custom applications.
Specs
Specifications - Transmissive Spatial Light Modulator
Retarder Material
Nematic liquid crystal
Substrate Material
Optical quality synthetic fused silica
Center Wavelength
450-1800 nm (specify)
Phase Amplitude (min.)
1λ optical path difference
0-100%
Retardance Uniformity
≤ 2% rms variation over clear aperture
Transmitted Wavefront Distortion
≤ λ/4 (P-V @ 633)
[≤ λ /10 (RMS @ 633)]
Surface Quality
40 -20 scratch-dig
Beam Deviation
≤ 2 arc-min
Transmittance
> 90% (without polarizers)
Reflectance (per surface)
≤ 0.5% at normal incidence
Dimensions (L x W x H)
7.00 x 2.96 x 0.74 in.
Recommended Safe
Operating Limit500 W/cm2, CW
300 mJ/cm2, 10 ns, 532 nm
Temperature Range
10˚C to 45˚C
Controller Specifications
Output Voltage
2 kHz ac square wave digitally
adjustable 0-10 V rmsVoltage Resolution
2.44 mV (12 bit)
Computer Interface
USB
Power Requirements
100-240 V ac
47-63 Hz
1A
Dimensions (L x W x H)
9.50 x 6.25 x 1.50 in.
Weight
2 lbs.
Note: the D3128 controller is included with purchase of the SLM system.
Ordering Info
Ordering Information - Spatial Light Modulator
Name
Pixel Width (µm)Pixel
GeometryVersion
Part Number
Linear 1 x 128
98 µm x 4mm
Phase
AmplitudeSSP-128P-λ
SSP-128A-λHexagonal 127
1 mm across flats
Phase
AmplitudeHex-127P-λ
Hex-127A-λPlease specifiy your operating wavelength in n nanometers.
Custom SLM sizes and formats are available.
Optional Polarizers
Type
Wavelength Range (nm)
Part Number
Visible
450 - 700
SDP - VIS
Near Infrared
775 - 890
SDP - IR1