English to German Tech/Engineering Electronics / Elect Eng Faseroptischer Kreisel

Es geht um das Reduzieren von Wellenlängenbrumm in einem faseroptischen Kreisel.

The invention provides a method which reduces wavelength ripple in a fibre optic gyroscope by supressing, as well as reducing the effects of, whispering gallery modes generated by the gyroscope light source.

Whispering gallery modes are caused by the transmission of light through a curved section of optical fibre. More specifically, a narrow-radius bend in the optical fibre allows some of the light traveling through the fibre core to propagate into the optical fibre cladding, i.e. some of the light leaks from the core into the optical fibre buffer, forming a secondary light path. At some subsequent point along the optical fibre, this secondary light is re-coupled back into the fibre core, where it is recombined with the primary light traveling through the core, creating whispering gallery modes in the optical fibre.