Projects per year
An approach to generate high-quality broadband frequency swept millimeter-wave (mm-wave) pulses based on photonics-assisted direct frequency up conversion of a low-frequency chirped microwave drive signal has been proposed and demonstrated. This is made possible by using an unbalanced temporal pulse shaping system involving two cascaded Mach-Zehnder modulators both biased at the minimum transmission points. The proposed approach is verified by simulations. A frequency swept mm-wave pulse with instantaneous frequency spanning from 40 to 100 GHz is generated thanks to 40 times frequency up conversion. Two-fold improvement on the time-bandwidth product of the generated waveform is also achieved thanks to cascaded modulation.
|Title of host publication||International Topical Meeting on Microwave Photonics (MWP)|
|Place of Publication||Piscataway, NJ, USA|
|Number of pages||4|
|Publication status||Published - 29 Oct 2015|
SRP11: Strategic Research Programme: Processing of large scale multi-dimensional, multi-spectral, multi-sensorial and distributed data (M³D²)
1/11/12 → 31/10/22