Based on the optical rotation effect of nematic liquid crystals, Spatial Light Modulators (SLM) are very suitable for modulating the phase, amplitude or polarization state of light.
The SLM is available in either single or dual mask configurations. The dual layer mask allows independent control of both phase and amplitude.
Advantages:
A large number of LabView instruction set, MATLAB and C library, easy to operate
An analog-to-digital conversion port, can be used for such as pulse optimization feedback
Customize AR coating is available
Optional detachable lenses are available to assemble in a reflective configuration
Application：
High resolution modulation of phase and amplitude, especially suitable for pulse shaping of ultra-short pulses and high power lasers
| Part Number | Single Mask Configuration | Dual Mask Configuration |
| SLM-S640 | SLM-S320 | SLM-S640d | SLM-S320d |
| Active Area / mm2 | 64x10 | 32x13 | 64x10 | 32x13 |
| Number of Addressable Strips | 640 | 320 | 2x640 | 2x320 |
| Strip Size | 97μm (3.8mil) x10mm | 97μm (3.8mil) x13mm | 97μm (3.8mil) x10mm | 97μm (3.8mil) x13mm |
| Liquid Crystal Orientation (ne) | 0° Horizontal alignment, in other directions can be customized | ±45° |
| Transmission (@450nm...1100nm, Without Polarizers) | >80% | >75% |
| LC Gap | 3 μm (0.12 mil) |
| LC Tpye | nematic |
| Phase modulation Phase shift@430nm | approx. 7 π |
| Phase shift@ 1600 nm | approx. 2 π |
| Wavelength range | 430 nm ... 1600 nm |
| Driving voltage | 0 V ... 8 V | 0 V ... 5 V (switchable),12 bit resolution |
| Frame buffers | 0 ... 63 |
| ADC port | 0 V ... 1.0 V , 12 bit resolution |
| Interfaces | USB 2.0 | Ethernet |
| Trigger in/out | via optocoupler |
| Functions | extended instruction set integrated in firmware
(based on SLM-S640/12 instruction set) |
| Antireflective coating (optional) | customized coatings on request (broad or narrow band) |
| Mirror (optional) | enabling operation in reflective configuration
(removable for operation in transmissive configuration) |
Welcome to directly contact with us if any questions.
Email address：rayh@rayhphotonics.com