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Optoelectronic oscillator with delay elements in optical and RF domain

Britto, Larissa A. D. and Panasiewicz, Jognes and Pacheco, Gefeson M. Optoelectronic oscillator with delay elements in optical and RF domain. (2017) In: Progress In Electromagnetics Research Symposium (PIERS), 22 May 2017 - 25 May 2017 (St Petersburg, Russian Federation).

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Official URL: https://doi.org/10.1109/PIERS.2017.8262134


This study describes the generation of microwave signals by an optoelectronic oscillator, OEO. The delay of the OEO was made in the optical domain as well in the radio frequency (RF) domain. The constructed OEO was proposed for embedded applications, which requires low components volume, e.g., small size. Aimed at greater thermal stability and the application in embedded systems, a shorter acceptable optical fiber length was used as delay element. This enables to obtain an RF signal with the phase noise values according with the technical specifications. The total value of the OEO delay is completed with a delay in the RF domain. The benefits of this setup include the possibility of using inexpensive components and commercially available bandpass filter. Fiber optic section with length of 200 meters, coaxial cable and a filter with 15MHz of bandwidth were used. The output characteristics of the OEO were a microwave signal at 2.022 GHz, an intensity of 10.5dBm and a phase noise equal to −118.7 dBc/Hz for an offset of 100 KHz and −102.2 dBc/Hz for an offset of 10 KHz.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to the IEEE (Institute of Electrical and Electronics Engineers). This paper is available at : https://ieeexplore.ieee.org/document/8262134 “© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Audience (conference):International conference proceedings
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Institution:Other partners > Instituto Tecnologico de Aeronautica - ITA (BRAZIL)
Other partners > Instituto Nacional de Pesquisas Espaciais - INPE (BRAZIL)
Deposited On:11 Jun 2019 15:17

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