Using adaptive four-band OFDM modulation with 40 Gb/s downstream and 10 Gb/s upstream signals for next generation long-reach PON | Zendy

Chien-Hung Yeh | Zendy; ChiWai Chow | Zendy; Hao Chen | Zendy; B. W. Chen | Zendy

Open Access

Using adaptive four-band OFDM modulation with 40 Gb/s downstream and 10 Gb/s upstream signals for next generation long-reach PON

Author(s) -

Chien-Hung Yeh,

ChiWai Chow,

Hao Chen,

B. W. Chen

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.026150

Subject(s) - orthogonal frequency division multiplexing , passive optical network , quadrature amplitude modulation , qam , modulation (music) , optics , transmission (telecommunications) , upstream (networking) , physics , multiplexing , electronic engineering , computer science , wavelength division multiplexing , telecommunications , bit error rate , channel (broadcasting) , engineering , acoustics , wavelength

In this demonstration, we propose and demonstrate an adaptive long-reach passive optical network (LR-PON) using four-band orthogonal frequency division multiplexed (OFDM) channels. The downstream traffic rates from 6.25 to 40 Gb/s (using fixed quadrature amplitude modulation (QAM) level in the four OFDM bands) and from 9.37 to 40.3 Gb/s (using variable QAM levels in the four OFDM bands) can be achieved adaptively in the optical network units (ONUs) depending on different fiber transmission lengths from 0 to 100 km. For the upstream transmission, a 10 Gb/s 16-QAM OFDM signal with pre-emphasis is experimentally performed by using a 2.5 GHz directly modulated laser (DML). Based on the simulation and experimental results, the proposed adaptive four-band OFDM system could be a promising candidate for the future LR-PON.

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