Optoelectric Cannulas - single electrode
Optoelectric Cannulas - single electrode
The most straightforward configuration comprises a single 200 µm core diameter optical fiber of 0.22 NA and a 75 µm diameter metallic wire of 3MΩ impedance as an electrode. A grooved 1.25 mm zirconia ferrule has optical fiber in its central hole and the electrode embedded in its groove. The contacts with corresponding optoelectric patchcord are maintained with a bronze sleeve.
Other optical fiber, electrode types and multiple electrodes or even multiple fiber configurations are available upon request.
…generating
The most straightforward configuration comprises a single 200 µm core diameter optical fiber of 0.22 NA and a 75 µm diameter metallic wire of 3MΩ impedance as an electrode. A grooved 1.25 mm zirconia ferrule has optical fiber in its central hole and the electrode embedded in its groove. The contacts with corresponding optoelectric patchcord are maintained with a bronze sleeve.
Other optical fiber, electrode types and multiple electrodes or even multiple fiber configurations are available upon request.
Notes:- The electrode protrusion is the distance (mm) between the fiber tip and the electrode tip. Positive protrusion indicates the electrode is more prolonged than optical fiber.
- Stereotaxic Cannula Holders and Ferrule Receptacle adapters are available for implantation to secure the Mono Optoelectric Cannulas (SCH and FCA).
- More information on our electrodes can be found in this document (PDF).
The light propagation into brain tissue will vary with the optical fiber type and the light source parameters. It can be visualized in this Application Note (the French version is available here).
| Description | Drawing | Code | Note |
| Flat Tip |  |
FLT | |
| Conical Tip |  |
C45 C60 |
Rounded tip thickness: ~0.1x to 0.2x core diameter Standard angles: 45°, 60° Other angles on request (max 60°) |
| Taper Tip |  |
TAPER |
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