The LSR-3005 is designed for practical use on your optics table and integrates certified drive electronics powered through a single micro-USB connector (5VDC). Four standard diffuser configurations are available ranging from 6° (highest optical efficiency) to 24° (best speckle reduction). Most models combine an oscillating diffuser with a static diffuser to reduce the correlation length of the random patterns that are generated. This provides more effective speckle reduction yet minimizing the increase in beam divergence. The 17° model, which consists of a dynamic diffuser only, is particularly suitable when the diffuser needs to be in the image plane as is the case e.g. with holographic LCOS or in fiber coupling setups.
With an oscillation frequency of 300Hz and an amplitude of about 300um, the 5mm aperture model is the preferred choice for applications with high frame rates. VIS and NIR coated cover glasses are provided as a standard. Other coating options as well as diffuser combinations are available upon request.
The following table summarizes the main specifications of the standard LSR-3005 series:
Standard products |
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LSR-3005-6D-VIS | 6° | 4.2° oscillating, 4.2° static |
400 - 700nm | |||
LSR-3005-12D-VIS | 12° | 8.5° oscillating, 8.5° static |
400 - 700nm | |||
LSR-3005-24D-VIS | 24° | 17° oscillating, 17° static |
400 - 700nm | |||
LSR-3005-17S-VIS | 17° | 17° oscillating, no static |
400 - 700nm | |||
LSR-3005-6D-NIR | 6° | 4.2° oscillating, 4.2° static |
700 - 1100nm | |||
LSR-3005-12D-NIR | 12° | 8.5° oscillating, 8.5° static |
700 - 1100nm |
Finding an appropriate system layout is key to effective and efficient speckle reduction. Our application note contains several suggestions, suitable for a variety of applications.