Demonstration of baud-rate-variable and channel-spacing-tunable demultiplexing of 10-40-Gbaud OFDM Subcarriers using a multi-tap optical DFT

Author

Chitgarha, Mohammad R. ; Khaleghi, Salman ; Yilmaz, Omer F. ; Yang, Jeng-Yuan ; Willner, Alan E.

Author_Institution

Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA

fYear

2011

Firstpage

1

Lastpage

3

Abstract

We experimentally demonstrate a tunable and reconfigurable optical DFT to demodulate 10-40-Gbuad OFDM with 2/3/4 subcarriers at 20/40GHz frequency spacing. Average power penalty of ~7 dB at BER of 10^-9 is achieved on the subchannels in the 4×20Gbit/s case, and ~3 dB penalty is observed by using 50% guard time 4×10Gbit/s at 20G frequency spacing.

Keywords

OFDM modulation; channel spacing; demodulation; demultiplexing; discrete Fourier transforms; optical tuning; OFDM subcarrier; baud-rate variable demultiplexing; bit rate 10 Gbit/s; channel spacing tunable demultiplexing; demodulation; discrete Fourier transform; frequency spacing; multitap optical DFT; orthogonal frequency division multiplexing; reconfigurable optical DFT; Discrete Fourier transforms; OFDM; Optical fibers; Optical filters; Optical interferometry; Optical pumping;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2011 and the National Fiber Optic Engineers Conference

Conference_Location

Los Angeles, CA

ISSN

pending

Print_ISBN

978-1-4577-0213-6

Type

conf

Filename

5875676