Abstract
A frequency-sextupling dual-loop optoelectronic oscillator (OEO) without any electronic microwave filters is proposed and demonstrated. In the proposed OEO, a modulated signal that consists of an optical carrier and odd-order sidebands is generated using a Mach–Zehnder interferometer (MZI). The modulated signal is then divided into reflection components and transmission components by a fiber Bragg grating (FBG). The reflection components, including the optical carrier and the ±1st-order sidebands, are sent to a photodetector (PD1) and then fed back to the MZI to form the OEO loop. The transmission components, including the ±3rd-order sidebands, are sent to another PD (PD2) to generate a frequency-sextupled microwave signal. Meanwhile, a microwave photonic filter is formed by the joint operation of the MZI, the FBG, and an optical domain dual-loop composite cavity that performs the selection of the oscillation mode. As a result, a fundamental oscillation signal at 4.03 GHz and its frequency-sextupled microwave signal at 24.18 GHz are generated with their performance being evaluated.
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.
