A device for combining or to separate of the waves genesis of polarizations mutually perpendicular, amplifier device and a device for detection coherent.

摘要

A filter (34) possessing a reflection coefficient substantially equal to 0 for a first direction of linear polarisation, and substantially equal to 1 for a second direction of linear polarisation, perpendicular to the first, is arranged at the ends of three waveguides (28, 30, 32), the first (28) and second (30) being for maintaining polarisation, for mutually perpendicular polarisations, and the third (32) allowing propagation of an electromagnetic wave independently of its polarisation. The invention also relates to an optical polariser drawn into a fibre, an amplifying device and a coherent detection device, each comprising a wave-combining or wave-splitting device of the aforementioned type. Application to optical telecommunications. IMAGE