21.4 Gbit/s transmission over 200 km multimode fibre using coherent optical OFDM

Tong, Zheng; Yang, Qi; Ma, Yaoguang; Shieh, William

doi:10.1049/el:20082050

Cited by 18 publications

(8 citation statements)

References 9 publications

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“…However such efforts have been limited to short distances. In addition, optical orthogonal frequency-division multiplexing (OFDM) has been suggested as a way of providing tolerance to modal dispersion [22]. The OFDM approach to transmission in multimode fiber inherently assumed that modal dispersion will be present in all multimode fibers regardless the number of modes supported by the fiber [23].…”

mentioning

confidence: 99%

“…It is encouraging that even with SMMFs several groups were able to transmit bit rates at 10 Gb/s or more, to distances on the order of several kilometers with negligible or no dispersion penalty [22]. By using multimode fibers that are optimized for reducing mode coupling rather than increasing it, it should be possible to extend the modal-dispersion-free transmission distance.…”

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confidence: 99%

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Long distance transmission in few-mode fibers

Yaman¹,

Bai²,

Zhu³

et al. 2010

Opt. Express

169

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Using multimode fibers for long-haul transmission is proposed and demonstrated experimentally. In particular few-mode fibers (FMFs) are demonstrated as a good compromise since they are sufficiently resistant to mode coupling compared to standard multimode fibers but they still can have large core diameters compared to single-mode fibers. As a result these fibers can have significantly less nonlinearity and at the same time they can have the same performance as single-mode fibers in terms of dispersion and loss. In the absence of mode coupling it is possible to use these fibers in the single-mode operation where all the data is carried in only one of the spatial modes throughout the fiber. It is shown experimentally that the single-mode operation is achieved simply by splicing single-mode fibers to both ends of a 35-km-long dual-mode fiber at 1310 nm. After 35 km of transmission, no modal dispersion or excess loss was observed. Finally the same fiber is placed in a recirculating loop and 3 WDM channels each carrying 6 Gb/s BPSK data were transmitted through 1050 km of the few-mode fiber without modal dispersion.

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mentioning

confidence: 99%

mentioning

confidence: 99%

Long distance transmission in few-mode fibers

Yaman¹,

Bai²,

Zhu³

et al. 2010

Opt. Express

169

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“…MMF has long been perceived as the medium for short reach systems. In fact, 21.4Gb/s signal can be transmitted 200km through the MMF communication system [1]. Nevertheless it is instructive to note two important advantages that MMF possesses over single-mode fiber (SMF).…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, CO-OFDM technology can take full advantage of the high frequency band-pass regions of the multimode fiber, and carry high-speed and high capacity communication. It is considered as a good candidate for MMF-based transmission because of its dispersion resilience [1]. However, the deep fading in high frequency band pass region of the multimode fiber will affect the system performance.…”

Section: Introductionmentioning

confidence: 99%

Research on Adaptive Modulation Algorithm of Multimode Fiber Communication System Using Coherent Optical OFDM

Wan

Tong

Xie

et al. 2010

2010 International Conference on Communications and Mobile Computing

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Coherent Optical OFDM (CO-OFDM) technology can take full advantage of the high frequency band-pass regions of the multimode fiber, and carry high-speed and high capacity communication. However, the deep fading in high frequency band pass region of the multimode fiber will affect the system performance. Adaptive Modulation Algorithm was studied. The authors proposed an algorithm using threshold allocation of optical signal to noise ratio (OSNR), and introduced the CO-OFDM multimode fiber communication systems based on adaptive modulation (AM).The experimental results show that AM-CO-OFDM multimode fiber communication systems reduces 2dB OSNR requirement than that without AM technology in 21.4Gb/s CO-OFDM signal transmission over 200km of multimode fiber.

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“…Recent researches show that OFDM is more robust to the mode dispersion in multimode optical communication system [8][9][10]. It implies that high-speed and large-capacity transmission may be achieved in widely deployed multimode fiber short-distance communication system in which the mode dispersion is the most limiting factor.…”

Section: Introductionmentioning

confidence: 99%