More about the series eShel...
Object fiber for fiber-optic ladder spectroscopy systems, in particular the eShel spectroscope. Connect the FIGU (Fiber Injection and Guiding Unit) to the eShel spectroscope
- Connectors: FC type (both ends)
- Multimode FiberNumerical aperture : NA = 0,22
- Core diameter: 50µm (for Object fibers)
- 5mm-diameter stainless steel cladding, for optimum protection… even at night (no risk of breakage if you step on the optical fiber).
Note: losses mainly occur in the junctions, at connector level. The transmission of the fiber itself, up to some dozens of meters, is close to 100%. As a consequence, this attenuation value (<0.5dB) is valuable whatever is the length (5, 10 or 20m). Since October 2017, the fibers optics “Objects” (50µm) are of type “High-OH”, offering a very good performance in the blue part of the spectrum. These fibers can be used from 380 to 800nm, or even above.For “object” optical fibers, we have been using “High-OH” fibers since October 2017, which offer excellent performance in the blue and even near-UV range (usable from 380-400nm), right up to the infrared (800nm and more).
