We report a high performance phase modulation direct detection microwave photonic link employing a photonic chip as a frequency discriminator. The photonic chip consists of five optical ring resonators (ORRs) which are fully programmable using thermo-optical tuning. In this discriminator a drop-port response of an ORR is cascaded with a through response of another ORR to yield a linear phase mo...

Linear Frequency Modulation (LFM) waveform becomes widespread in modern pulse compression radar systems in order to improve its target range resolution capability. Conventional LFM based on varying the waveform frequency linearly within the radar pulse width which leads to high Auto Correlation Function (ACF) with limited compression ratio (CR) and side lobe level (SLL). This paper proposed Opt...

In this study, modulation spectral features (MSFs) are proposed for the automatic recognition of human affective information from speech. The features are extracted from an auditory-inspired long-term spectro-temporal representation. Obtained using an auditory filterbank and a modulation filterbank for speech analysis, the representation captures both acoustic frequency and temporal modulation ...

Various types of photonic applications, such as sensing and communication, require the generation wideband optical frequency-modulated (FM) signals. However, generating a FM signal beyond electrical bandwidth limitation modulators is difficult. Here, we propose method to increase bandwidths signals by using cascaded four-wave-mixing (FWM) process show its potential in two applications. We first...