Extended-reach PON employing 10Gb/s integrated reflective EAM-SOA

MacHale, E. K.; Talli, Giuseppe; Townsend, Paul D.; Borghesani, A.; Lealman, I.F.; Moodie, D.G.; Smith, Denise M.

doi:10.1109/ecoc.2008.4729416

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…The R-EAM-SOA uses multiple quantum well structures in a double pass design. First experiments showed error-free operation at 10 Gb/s up to a split of 128 [5]. The SOA was operated in gain saturation in order to mitigate Rayleigh beat noise.…”

Section: Colourless Transmittermentioning

confidence: 99%

Next generation access networks: PIEMAN and beyond

Smolorz

Rohde

Ossieur

et al. 2009

2009 International Conference on Photonics in Switching

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Section: Colourless Transmittermentioning

confidence: 99%

Next generation access networks: PIEMAN and beyond

Smolorz

Rohde

Ossieur

et al. 2009

2009 International Conference on Photonics in Switching

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“…Thus this paper seeks to realize high-speed transmission using small-bandwidth transceivers assisted by pre-and post-processing of the data. Noticing the shortcomings of FP-LD or RSOA, the integrated semiconductor optical amplifier (SOA) and reflective electro-absorption modulator (REAM) were proposed recently to enhance the uplink capacity of WDM-PONs up to and beyond 10 Gb/s [7][8][9][10]. Thanks to the employment of the external modulator, the SOA-REAM has a much lower chirp parameter and an electrical bandwidth of 20 GHz.…”

Section: Introductionmentioning

confidence: 99%

40 Gb/s Operation of SOA-REAM in Single-Feeder WDM-PON [Invited]

Guo

Tran

2012

J. Opt. Commun. Netw.

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The integrated semiconductor optical amplifier (SOA) with a reflective electro-absorption modulator (REAM) is a promising candidate for the colorless optical network unit in a wavelength-division-multiplexed passive optical network (WDM-PON), due to its low chirp and wide bandwidth. However, 40 Gb/s operation of REAMs (bandwidth ≤ 20 GHz) still encounters severe intersymbol interference. Furthermore, Rayleigh backscattering (RB) and discrete reflections cause strong beat noise in WDM-PONs with single-fiber loopback configuration. In this paper, we present two novel techniques based on electrical equalization for a 40-Gb/s single-feeder WDM-PON based on SOA-REAM. The first method is to employ partial-response (PR) signaling and a noise predictive maximum likelihood (NPML) equalizer at the upstream receiver. The other one combines correlative level (CL) pre-coding with partial-response maximum likelihood (PRML) equalization. We experimentally demonstrate a 40-Gb/s uplink of 20 km using a 20-GHz SOA-REAM in a WDM-PON by both PR-NPMLand CL-PRML. The results also verify the superiority of PR-NPML over the previously reported equalizers. Moreover, compared with PR-NPML, CL-PRML further improves the system performance. Experiments prove that the tolerance to beat noise and the receiver sensitivity are enhanced by 4 dB and 0.8 dB, respectively, at a bit error ratio of 2 × 10 −4 .Index Terms-Electro-absorption modulator (EAM); Maximum likelihood (ML); Partial response (PR); Passive optical network (PON).

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