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Why Tapered Fibers?

Delivering light in a controlled fashion is required to fully exploit the potential of optogenetic techniques in controlling and monitoring neural circuits. A simple and cost-effective device based on a thin Tapered Optical Fiber (TF) that can perform both homogeneous light delivery and dynamically-controlled spatially-restricted illumination.

  • Wide-volume illumination can be obtained in both freely-moving and head restrained mice.
  • TFs also allow for site selective light delivery.
  • Compatibility with both laser and LED light sources.
  • In comparison with flat-cleaved optical fibers, TFs are less invasive and capable of achieving a larger illuminated volume and higher penetration depth.
  • Possibility of tailoring TF emission lengths up to 3mm through NA value – perfect for deep brain regions.
  • Complement existing methods for light delivery in optogenetics experiments and has the potential to replace commonly used flat-faced fibers for many applications.

MCI Currently has two fibers available from OptogeniX:

The Lambda-B Fibers, perfect for illuminating large volumes of tissue.

The Sigma-2 Fibers, ideal for off-axis light delivery.

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