Consejo Superior De Investigaciones Cientificas

Universidad De Malaga

J Gonzalo Wangüemert Pérez

Robert Halir

Alejandro Ortega Moñux

Aitor Villafranca Velasco

Iñigo Molina Fernández

David González Andrade

Pedro Corredera Guilén

Alaine Herrero Bermello

Pedro Corredera

Inigo Molina Fernández

An integrated mode converter and multiplexer (/demultiplexer) combines a multimode interference coupler, at least one phase-shifter and a symmetrical Y-junction. The dispersion of the multimode interference coupler is engineered through subwavelength structures in order to achieve a very wide bandwidth. Several phase-shifter topologies for further bandwidth enhancement are disclosed, as well as architectures for multiplexing a greater number of optical modes.

Integrated mode converter and multiplexer

An integrated mode converter and multiplexer (/demultiplexer) is disclosed, which combines a multimode interference coupler (), at least one phase-shifter () and a symmetrical Y-junction (). The dispersion of the multimode interference coupler () is engineered through subwavelength structures in order to achieve a very wide bandwidth. Several phase-shifter () topologies for further bandwidth enhancement are disclosed, as well as architectures for multiplexing a greater number of optical modes.

The invention relates to an integrated polarisation splitter based on a sub-wavelength multimode interference coupler (), in other words, a multimode interference coupler () with an anisotropic multimode waveguide region formed by a plurality of sections of core material () and a plurality of sections of a cladding material () alternately arranged in a periodic way, with a period (&#x39b;) smaller than the wavelength of a light propagated through said anisotropic region. The core material sections () are rotated an angle (&#x3b1;) greater than zero with respect to a perpendicular with an input waveguide () to increase the anisotropic character of the multimode waveguide region.

Integrated polarization splitter

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Málaga, Spain

J Gonzalo Wangüemert Pérez