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.
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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.
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| 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 Limit |
500 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 rms |
| Voltage 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 Information - Spatial Light Modulator | |||
|
Name Pixel Width (µm) |
Pixel Geometry |
Version | Part Number |
| Linear 1 x 128 | 98 µm x 4mm |
Phase Amplitude |
SSP-128P-λ SSP-128A-λ |
| Hexagonal 127 | 1 mm across flats |
Phase Amplitude |
Hex-127P-λ Hex-127A-λ |
|
Please 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 | |
