Universitat Politécnica De Valência

Universitat Politecnica De Valencia (upv)

Ivana Gasulla Mestre

José Capmany Francoy

Daniel Pérez López

Erica Sánchez Gomáriz

The method object of the invention enables the scalable configuration and performance optimisation to be carried out for programmable optical circuits based on meshed structures, in such a way that they can perform optical/quantum signal processing functions. The object of the invention can be applied in circuits with arbitrary degrees of complexity implemented by means of programming a waveguide mesh. The method object of the invention enables not only the analysis and evaluation of performance to be carried out, but also the subsequent programming and optimisation of programmable optical devices.

Method of configuration and optimisation of programmable photonic devices

The present invention discloses a directional photonic coupler () with independent tuning of the coupling factor and phase difference. The coupler comprises: two waveguides (), with respective propagation constants '&#x3b2;, &#x3b2;', on which phase shifters () configured to modify the propagation coefficients are located. Both phase shifters are configured such that, by independent modification (differential or unique) of the propagation coefficients, the power coupling factor (K) between an input signal (or) and the output signals (and) is tuned, and by equal and simultaneous modification of the propagation coefficients, the common phase difference of the optical output signals () is tuned. A third phase shifter () can be used to retune the phase difference at the input/output of one of the waveguides. The coupler is of particular interest in PIC circuits, coupled resonators, Mach-Zehnder interferometers and mesh structures.

Directional photonic coupler with independent tuning of coupling factor and phase difference

The present invention relates to a photonic chip realized by combining at least one Programmable Photonics Analog Block (PPAB) and at least one Reconfigurable Photonic Interconnection (RPI) implemented over a photonic chip that is capable of implementing one or various simultaneous photonics circuits and/or linear multipart transformations by the appropriate programming of its resources (i.e. PPABs and RPIs) and the selection of its input and output ports. The invention also relates to a field-programmable photonic array (FPPA) comprising at least a programmable circuit based on tunable beamsplitters with independent coupling and phase-sifting configuration and peripheral high-performance building blocks.

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Valencia, Spain

Ivana Gasulla Mestre