Network training in photonics
The project 'Microwave and terahertz photonics' (MITEPHO)(opens in new window) aimed to equip young researchers with skills and know-how in developing photonic sources for continuous wave signal generation from microwave to terahertz frequencies. Funded under the Marie Curie Initial Training Network (ITN) scheme, MITEPHO engaged early-stage researchers in developing techniques based on the photonic oscillator concept. This is a relatively new approach to generating low-phase noise signals at the targeted frequency ranges. The technique involves use of two optical frequencies from a dual-mode laser source that are down-converted in a photomixer. The frequency of the generated terahertz beatnote is the result of the difference between the two optical signals. MITEPHO combined different expertise in the microwave and terahertz fields from device design to signal generation. Project activities resulted in development of a number of successful products. The developed microwave and terahertz detectors and sources have a small wavelength and large bandwidth, as well as the ability to penetrate dielectrics in some areas over optical free-space communications. Researchers explored new cost-effective telecommunications systems for nano-engineering, imaging, security, biomedical and defence applications. The team also developed non-destructive testing methods to characterise carbon nanotube and graphene-based systems. Components are expected to address the high frequency regime of over 100 GHz and reach the telecom market. They should also be low-cost and compact, and be included in integrated photonic systems. The MITEPHO ITN consisted of five university partners, three research laboratories and four industrial partners across Europe. Dissemination activities included conferences, workshops, articles and publications in journals.
