20-Gb/s AMO OFDM Transmission Over 20-km Bidirectional Link by Separate I/Q Baseband Delivery Using Remotely Fed 1-GHz RSOAs

被引：9
作者：
Joo, Jeong-Min [1 ]
Hong, Moon-Ki [1 ]
Pham, Dung Tien [1 ]
Han, Sang-Kook [1 ,2 ]
机构：
[1] Yonsei Univ, Dept Elect & Elect Engn, Seoul 120749, South Korea
[2] Yonsei Univ, Yonsei Inst Convergence Technol, Inchon 406840, South Korea
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2012年 / 30卷 / 16期
关键词：
Adaptively modulated optical (AMO) orthogonal frequency division multiplexed (OFDM); colorless optical network unit (ONU); remotely fed bandwidth limited reflective semiconductor optical amplifier (SOA); separate I/Q baseband transmission; ACCESS; TECHNOLOGIES; PERFORMANCE; COLORLESS; OPERATION; FIBER; ONU;
D O I：
10.1109/JLT.2012.2205219
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We demonstrated a novel 20-Gb/s adaptively modulated optical orthogonal frequency division multiplexed (AMO OFDM) transmission scheme with separate in-phase (I) and quadrature (Q) channel baseband delivery over a 20-km single fiber link using remotely fed 1-GHz reflective semiconductor optical amplifiers (RSOAs) for a colorless optical network unit (ONU). The OFDM symbols with adaptive bit-/power-loading were applied to overcome the bandwidth limitation of RSOAs and to optimize the performance. In order to realize the baseband transmission without Hermitian symmetry, the I and Q channel data streams in the OFDM symbols were separately transmitted by optical carriers at two different wavelengths. Our proposed scheme was experimentally validated using a periodic property of free spectral range (FSR) in a wavelength multiplexer. The separate optical "dual" carriers were provided by the same port of the wavelength multiplexer to avoid wasting the number of wavelength division multiplexed channels.
引用
收藏
页码：2661 / 2667
页数：7
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