Flexible 90 degrees Hybrid Coupler for Coherent Optical Systems Based on Organic-Inorganic Hybrids


The next generation of optical networks requires the development of optical technology that supports high bandwidth, such as the coherent systems. The coherent detection allows the in-phase and quadrature components of a QPSK signal to be extracted as a result of the interference with a local oscillator. An integrated optics flexible 90 degrees hybrid coupler device based on a single organic-inorganic di-ureasil hybrid layer was fabricated using direct UV-laser writing. The demodulator exhibits a single input - multiple output port transfer function depending on the optical signal phase. This example demonstrates that di-ureasils are potential low-cost solutions for the fabrication of polarization controlling devices.



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Engineering; Optics; Telecommunications


Bastos, ARN; Vicente, CMS; Carlos, LD; Lima, M; Andre, PS; Ferreira, RAS

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