Abstract
In this paper, a novel photonic phase shifter with − 180° to 180° phase-tunable range and multi-band frequency-conversion feature is proposed. The main device is a single polarization division multiplexing dual-parallel Mach–Zehnder modulator (PDM-DPMZM). The PDM-DPMZM is employed to generate an optical frequency comb (OFC) and a carrier-suppressed single sideband (CS-SSB) in two mutually orthogonal polarizations. Simultaneously, an electrical phase shifter is adopted to control the initial phase of the CS-SSB. The simulation results show, a RF signal with the frequency of 4.3 GHz (C-band) can be down-converted to 1.4 GHz (L-band). Meanwhile, it can also be up-converted to 5.7 GHz (C-band), 10 GHz (LO signal), 14.3 GHz (Ku-band) and 18.6 GHz (K-band) with their phases continuously tuned from − 180° to 180°. Furthermore, the proposed structure features flat power response, frequency-independent operation, simple configuration, easy phase tuning, better ability to cope with DC drift and wide operation bandwidth. The unwanted signal suppression ratio (USSR) and the spurious free dynamic range (SFDR) of the phase shifter are also studied.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
