Optical communications of analog and digital signals. Radio-over-fiber systems. Quantum photonics.

Research Topics

Cryptography and quantum information

The research line is focused on the applications of Quantum Mechanic principles to information processing in optical telecommunication systems (Entanglement , Quantum state teleportation and Encryption).

Industrial Photonic

The OQCG also offers its expertise on multiple optical technologies to tackle industrial challenges, like: Laser-ultrasound systems for detection of material imperfections, Strain and temperature optical fiber sensors for building monitoring, Very high temperature optical sensors for fire detection, Chemical optical fiber sensors for characterization of concrete material.

Optical Networks

Optical links conform a large part of the current global communication network, and the trend is growing with the latest . deployments of Fiber-to-the-Home, (FTTH) networks and fiber backhauling of mobile and radio networks. With this background, the OQCG develops it's research in the following lines: Architectures in optical path switching networks, Architectures in optical packets switching networks, Photonic systems based on code division multiplexing for access networks and Reconfiguration in access and in-building networks, Optical processing of signals in Broadband Networks and Access Networks. Also, Advanced modulation formats, such as OFDM in optical networks, are being deeply theoretically and experimentally explored in different configurations in order to optimize the design paremeters to maximize the networks performance.

Fibre Bragg Gratings

Design and fabrication of Fibre Bragg Gratings for communication networks (Dispersion compensation and optical filters)and Sensing applications (high temperature, stress, pressure, chemical)

Photonic devices

Design of integrated photonic devices for multiple applications (optical telecom, optical signal processing, sensing, biophotonics):Silica or PLC (SiO2), Silicon-on-Insulator (SOI), Silicon Nitride (Si3N4), Active devices in InP

Microwave Photonics

Among the most productive research lines, OQCG is considered a world leading group in Microwave Photonics (MWP), principally due to its contributions to the field of microwave photonic signal processing, a fundamental technology for the convergence of fixed and wireless telecommunication networks. The research is focused in tunable and reconfigurable microwave filters based in fibre gratings and delay lines for the processing of radiofrequency, microwave and milimetric signals, directly in the optical domain, Remote antenna array feeders by means of optical delay lines (beamforming and beam stearing), Ultra-high capacity transmission through multimode fiber for in-building and access networks, Slow and Fast Light (SFL) Effects applied to Microwave Photonics. Implementation oftunable broadband microwave phase shifting and true time delay functionalities by means of different SFL technologies as Coherent Population Oscillations in Semiconductor Optical Amplifiers and stimulated Brillouin scattering in optical fibers, RADAR and Ultra Wide Band (UWB) applications and Optical Frecuency Division Multiplexing (OFDM) techniques.

OFDM-based Optical CommunicationS Systems

The use of the OFDM modulation in optical communication has attracted a high interest in recent years thanks to the possibility of simple equalization with moderate implementation complexity using digital signal processing techniques. The objectives of this research line are: development of algorithms for direct detection optical OFDM, analysis and evaluation of nonlinear optical effects in optical OFDM, implementation of a real-time demonstrator using high speed data converters (Gsps).


Instituto de Telecomunicaciones
y Aplicaciones Multimedia (iTEAM)

Edificio 8G. Planta 4ª, acceso D
Universitat Poltècnica de València
Camino de Vera, s/n
46022 Valencia


Phone +34 963879580

Fax +34 963879583

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