Abstract
In this paper, a kind of coupled opto-electronic oscillators (COEOs), constructured with a traditional opto-electronic(OEO) ring and a mode-lock laser ring, was presented. The COEO could output optical pulses as well as spectrally pure microwave signals simultaneously. The repetition of the optical pulse train and the frequency of output RF signal could be controlled and locked by a microwave filter and a phase-locked loop (PLL). As a result, we obtained optical pulses as short as ps and a microwave signal as high as 20GHz. By cooperated with a 100MHz high-stable crystal oscillator, the COEO was applied in a 2-bit frequency agile microwave generating system. The output frequency could be controlled by TTL signals rapidly or configured by software commands as well. The frequency switching time was measured to be 23ns by using a bit error rate tester(BERT). These experiments demonstrates that COEOs are promising sources for frequency agile radar systems.
Sign-in/Register to access full text options 
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.
