Optical fault monitoring method using broadband light source in WDM-PON

Park, S.-B.; Jung, Daeseung; Shin, H.S.; Shin, Dongjae; Hwang, Seongtaek; Oh, Youngtek; Shim, Changbeom

doi:10.1049/el:20063958

Cited by 24 publications

(9 citation statements)

References 2 publications

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“…For detection of the reflected monitoring wavelengths a series of power meters, an optical spectrum analyser (OSA) or a photodetector followed by proper signal processing and display unit as in a conventional OTDR were proposed respectively in [45], [44], and [46].…”

Section: Use Of Tunable Otdr or Multi-wavelength Source And Optical Rmentioning

confidence: 99%

Optical layer monitoring in Passive Optical Networks (PONs): A review

Yüksel¹,

Moeyaert²,

Wuilpart³

et al. 2008

2008 10th Anniversary International Conference on Transparent Optical Networks

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Section: Use Of Tunable Otdr or Multi-wavelength Source And Optical Rmentioning

confidence: 99%

Optical layer monitoring in Passive Optical Networks (PONs): A review

Yüksel¹,

Moeyaert²,

Wuilpart³

et al. 2008

2008 10th Anniversary International Conference on Transparent Optical Networks

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“…Furthermore, the monitoring system is typically implemented at the network node. However, such systems usually used a broadband light source [13][14][15][16][17][18][19]. Since the optical power of broadband light source is weak, the scale of a monitoring system is limited by the broadband light source.…”

Section: Introductionmentioning

confidence: 99%

Cable television monitoring system based on fiber laser and FBG sensor

Peng

Huang

et al. 2015

SPIE Proceedings

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We propose and experimentally demonstrate a cable television monitoring system based on a linear-cavity fiber laser and fiber Bragg grating (FBG) sensors. The linear-cavity fiber laser comprises a hybrid amplifier with an erbium-doped fiber amplifier and a semiconductor optical amplifier, a fiber loop mirror with a polarization controller and an optical coupler as a cavity mirror, and the FBG sensors acting as another cavity mirrors. Experimental results showed the feasibility of the monitoring system with sufficient of signal-to-noise ratio over 30 dB and stable output power, and the link of cable television signals on fiber link can monitored in real time. Excellent performances of carrier-to-noise ratio after longdistance transmission are obtained for cable television applications.

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“…In a P2MP PON topology, fiber fault detection by OTDR is not possible because the Rayleigh back-scattered light from different branches cannot be distinguished at the OTDR. Several methods have been proposed to overcome this problem [3][4][5][6]. Most of these solutions are impractical mainly because their capacity is limited to few customers.…”

Section: Introductionmentioning

confidence: 99%

Fiber Ring Encoder for PON Fault Monitoring

Esmail

Alotaibi

Fathallah

2010

2010 8th Annual Communication Networks and Services Research Conference

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This paper proposes a novel periodic optical encoder for centralized fault monitoring of fiber-to-the home (FTTH) passive optical networks (PONs). The encoder exploits a fiber ring to produce a periodic code. This reduces the cost of monitoring system while maintains good performance and high capacity. We evaluate the performance of this encoding system in terms of signal to noise ratio (SNR). We obtain an SNR of 12.5 dB for a 32 customers network in one shot measurement. We also show that capacity of 64, 128 and 256 could be accommodated in expense of larger but acceptable measurement time.

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Optical fault monitoring method using broadband light source in WDM-PON

Cited by 24 publications

References 2 publications

Optical layer monitoring in Passive Optical Networks (PONs): A review

Optical layer monitoring in Passive Optical Networks (PONs): A review

Cable television monitoring system based on fiber laser and FBG sensor

Fiber Ring Encoder for PON Fault Monitoring

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