Cost-effective 33-Gbps intensity modulation direct detection multi-band OFDM LR-PON system employing a 10-GHz-based transceiver

Department of Photonics, National Chiao-Tung University, Hsinchu, Taiwan.
Optics Express (Impact Factor: 3.49). 08/2011; 19(18):17546-56. DOI: 10.1364/OE.19.017546
Source: PubMed


We develop a dynamic multi-band OFDM subcarrier allocation scheme to fully utilize the available bandwidth under the restriction of dispersion- and chirp-related power fading. The experimental results successfully demonstrate an intensity-modulation-direct-detection 34.78-Gbps OFDM signal transmissions over 100-km long-reach (LR) passive-optical networks (PONs) based on a cost-effective 10-GHz EAM and a 10-GHz PIN. Considering 0-100-km transmission bandwidth of a 10-GHz EAM, the narrowest bandwidth is theoretically evaluated to occur at ~40 km, instead of 100 km. Consequently, the performances of 20-100-km PONs are experimentally investigated, and at least 33-Gbps capacity is achieved to support LR-PONs of all possible 20-100-km radii.

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Available from: Dar-Zu Hsu, Aug 20, 2014
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    • "In colorless upstream transmitter's schemes such as those proposed in [15]–[17] and [18], [19], the reflective semiconductor optical amplifier (RSOA) or Fabry–Perot laser diode (FP-LD) based on the wavelength reuse and self-seeding was used as tunable transmitters, whereby the reflective approaches lack the transmission capability. As for high power budget and long reach transmission, in [20], the authors have presented deploying the erbium-doped fiber amplifier (EDFA) as relay amplifier, which extended the system reach but changed the passive feature of PON system. In [21], [22], the authors have adopted a coherent receiver in OLT to achieve high sensitivity therefore improving power budget. "
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