High-Capacity Wireless Signal Generation and Demodulation in 75- to 110-GHz Band Employing All-Optical OFDM

Author

Zibar, Darko ; Sambaraju, Rakesh ; Caballero, Antonio ; Herrera, Javier ; Westergren, Urban ; Walber, Achim ; Jensen, Jesper Beevense ; Marti, Javier ; Monroy, Idelfonso Tafur

Author_Institution

Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark

Volume

23

Issue

12

fYear

2011

fDate

6/15/2011 12:00:00 AM

Firstpage

810

Lastpage

812

Abstract

We present a radio-frequency (RF) and bit-rate scalable technique for multigigabit wireless signal generation based on all-optical orthogonal frequency-division multiplexing (OFDM) and photonic up-conversion. Coherent detection supported by digital signal processing is used for signal demodulation and data recovery. In order to demonstrate the RF frequency scalability and bit-rate transparency, the system is tested at 60 GHz and in the 75- to 110-GHz band at the baud rates of 5 and 10 Gbaud. In terms of the bit rate, the proposed system is experimentally tested up to 40 Gb/s for wireless signal generation and demodulation. The wireless transmission is not considered in this letter. Additionally, a novel digital carrier phase/frequency recovery structure is employed to enable robust phase and frequency tracking between the beating lasers.

Keywords

OFDM modulation; multiplexing; optical frequency conversion; optical harmonic generation; signal processing; OFDM; all-optical orthogonal frequency-division multiplexing; beating lasers; bit rate 40 Gbit/s; bit-rate scalable technique; data recovery; digital signal processing; frequency 60 GHz; frequency 75 GHz to 110 GHz; high-capacity wireless signal demodulation; multigigabit wireless signal generation; photonic up-conversion; radio-frequency technique; wireless transmission; Demodulation; OFDM; Optical mixing; Optical modulation; Optical receivers; Radio frequency; Wireless communication; Coherent communication; digital receivers; digital signal processing; microwave photonics; modulation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2139201

Filename

5750036