Special Section on Microwave Photonics: Deep Interactions between Microwaves and Lightwaves

Photonics-based tunable and broadband radio frequency converter

[+] Author Affiliations
Ramon Maia Borges, Daniel Mazzer, Tiago Reis Rufino Marins, Arismar Cerqueira Sodré, Jr.

Brazilian National Institute of Telecommunications (Inatel), Laboratory WOCA (Wireless and Optical Convergent Access), João de Camargo Avenue, 510, Santa Rita do Sapucaí-MG 37540-000, Brazil

Opt. Eng. 55(3), 031118 (Dec 07, 2015). doi:10.1117/1.OE.55.3.031118
History: Received August 12, 2015; Accepted October 29, 2015
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Abstract.  This paper is regarding the concept and development of a photonics-based tunable and broadband radio frequency converter (PBRC). It employs an external modulation technique to generate and reconfigure its output frequency, a digital circuit to manage the modulators’ bias voltages, and an optical interface for connecting it to optical-wireless networks based on radio-over-fiber technology. The proposed optoelectronic device performs photonics-based upconversion and downconversion as a function of the local oscillator frequency and modulators’ bias points. Experimental results demonstrate a radiofrequency (RF) carrier conversion with spectral purity over the frequency range from 750 MHz to 6.0 GHz, as well as the integration of the photonics-based converter with an optical backhaul based on a 1.5-km single-mode fiber from a geographically distributed optical network. Low phase noise and distortion absence illustrate its applicability for convergent and reconfigurable optical wireless communications. A potential application relies on the use of PBRC in convergent optical wireless networks to dynamically provide RF carriers as a function of the telecom operator demand and radio propagation environment.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Ramon Maia Borges ; Daniel Mazzer ; Tiago Reis Rufino Marins and Arismar Cerqueira Sodré, Jr.
"Photonics-based tunable and broadband radio frequency converter", Opt. Eng. 55(3), 031118 (Dec 07, 2015). ; http://dx.doi.org/10.1117/1.OE.55.3.031118


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