Focusing Over Optical Fiber Using Time Reversal

Author

Piels, Molly ; da Silva, Edson Porto ; Estaran, Jose ; Borkowski, Robert ; Monroy, Idelfonso Tafur ; Zibar, Darko

Author_Institution

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

Volume

27

Issue

6

fYear

2015

fDate

March15, 15 2015

Firstpage

631

Lastpage

634

Abstract

A time-reversal array in multimode fiber is proposed for lossless remotely controlled switching using passive optical splitters. The signal to be transmitted is digitally predistorted so that it is routed through the physical layer in order to arrive at only one receiver in an array. The system performance in the presence of an additive white Gaussian noise, modal group delay, and timing error is investigated numerically for single-mode fiber and 10-mode fiber. Focusing using a two-transmitter array and 44 km of single-mode fiber is demonstrated experimentally for 3-GBd QPSK signals with a bit error rate below the forward error correction limit.

Keywords

AWGN; error statistics; optical arrays; optical beam splitters; optical fibre losses; optical fibre networks; optical focusing; optical receivers; optical switches; optical transmitters; passive optical networks; quadrature phase shift keying; 10-mode fiber; QPSK signals; additive white Gaussian noise; bit error rate; forward error correction limit; lossless remotely controlled switching; modal group delay; multimode fiber; optical fiber; passive optical splitters; physical layer; receiver; single-mode fiber; size 44 km; system performance; time-reversal array; timing error; two-transmitter array focusing; Arrays; Focusing; Optical noise; Optical receivers; Optical transmitters; Signal to noise ratio; Access networks; Digital signal processing; Optical fiber communication; access networks; digital signal processing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2387092

Filename

7000574