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Optical Engineering

Photonics-based tunable and broadband radio frequency converter
Author(s): Ramon Maia Borges; Daniel Mazzer; Tiago Reis Rufino Marins; Arismar Cerqueira Sodré
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Paper 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.

Paper Details

Date Published: 7 December 2015
PDF: 7 pages
Opt. Eng. 55(3) 031118 doi: 10.1117/1.OE.55.3.031118
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Ramon Maia Borges, INATEL (Brazil)
Daniel Mazzer, INATEL (Brazil)
Tiago Reis Rufino Marins, INATEL (Brazil)
Arismar Cerqueira Sodré, INATEL (Brazil)

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