comprehensive community integrated optical component and distribution network with optical amplification.

摘要

Integrated-optics multi-purpose component comprising a light guide (12) formed on one face of a substrate (10) made from birefringent material having neutral axes oriented such that an electromagnetic wave propagating in the guide (12) is decomposed into two waves having polarisations which are mutually perpendicular and along the neutral axes, means (14, 15, 16, 18) for applying an electric field perpendicularly to the light guide (12) and uniformly along the guide (12), two linear polarisers (20, 22) of mutually parallel polarisation directions (d1, d2) each disposed at one end of the guide (12), and focusing means (24, 26, 28, 30). …??Distribution network applying the said component and comprising at least one optical amplifier. Information is transmitted by an optical delay modulation. A detection system enables the noise, due in particular to the sources, the optical amplifiers and the transmission line, to be reduced. …??Application to tunable optical filtering and to optical telecommunications. …IMAGE…