Super-dense WDM transmission of spectrum-sliced incoherent light for wide-area access network

Akimoto, Koji; Kani, Jun‐ichi; Teshima, M.; Iwatsuki, K.

doi:10.1109/jlt.2003.819135

Cited by 28 publications

(6 citation statements)

References 9 publications

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“…Spectrum slicing is an attractive and viable technology for such PON architectures [2] as it capitalizes on the economical advantages of incoherent sources such as light-emitting diodes, superluminescent diodes, and fiber-based amplified spontaneous emission (ASE) sources. Spectrum slicing is a method of sharing a single broadband optical source among many user channels by allocating a unique spectral slice to each channel [3].…”

Section: Introductionmentioning

confidence: 99%

Noise suppression of incoherent light using a gain-saturated SOA: implications for spectrum-sliced WDM systems

McCoy

Horák

Thomsen

et al. 2005

J. Lightwave Technol.

116

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Abstract-In this paper, we present an experimental and numerical study of semiconductor optical amplifier (SOA)-based noise suppression and its relevance to high-channel-density spectrumsliced wavelength-division-multiplexed systems. We show that the improvement in signal quality is accompanied by spectral distortion, which renders it susceptible to deterioration in the presence of subsequent optical filtering. This phenomenon originates from the loss of intensity correlation between spectral components of the SOA output when the signal spectrum is altered. As a consequence, a design tradeoff is introduced between intensity noise and crosstalk in high-channel-density systems. These adverse effects can be overcome by optimized SOA design, resulting in a significant improvement in signal quality.Index Terms-Optical noise, semiconductor optical amplifier (SOA), spectrum slicing, wavelength-division multiplexing(WDM).

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Section: Introductionmentioning

confidence: 99%

Noise suppression of incoherent light using a gain-saturated SOA: implications for spectrum-sliced WDM systems

McCoy

Horák

Thomsen

et al. 2005

J. Lightwave Technol.

116

View full text Add to dashboard Cite

show abstract

“…T HE GROWING demand for high bandwidth access services is driving the development of low-cost passive optical network technology such as spectrum-sliced wavelength-division multiplexing (WDM) using incoherent sources [1]. However, the intensity noise present in incoherent light imposes an upper limit on the achievable system performance.…”

Section: Introductionmentioning

confidence: 99%

Improving signal quality in a spectrum-sliced WDM system using SOA-based noise reduction

McCoy

Horák

Thomsen

et al. 2005

IEEE Photon. Technol. Lett.

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Abstract-We present an experimental and numerical study into the filtering effects in a spectrum-sliced incoherent light system incorporating a semiconductor optical amplifier (SOA) for noise reduction. Techniques to reduce the signal degradation caused by post-SOA filtering are investigated. The alignment of the receiver/demultiplexer filter relative to the input spectrum-slice is demonstrated to have a noticeable impact on the received signal quality. We also show that the linewidth enhancement factor of the SOA has a marked effect on the observed spectral distortion, which results in a strong dependence of the received signal quality on . Our results illustrate the potential to improve system performance by optimized SOA design.Index Terms-Optical noise, semiconductor optical amplifier (SOA), spectrum slicing, wavelength-division multiplexing (WDM).

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“…Externally-seeded solutions for re-modulation suffer scattering impairments, due to both the Rayleigh and the Brillouin backscatterings, which strongly limit the distance between the central office and the ONU [9]. WDM transceivers with spectrally sliced broadband optical sources have a limited optical budget and bit-rate reach due to inherent excess intensity noise and chromatic dispersion [10]. Transceivers based on self-seeded optical sources, as we are proposing, are both colourless and self-tuning.…”

Section: Introductionmentioning

confidence: 96%

Self-tuning transmitter for fibre-to-the-antenna PON networks

Parolari

Marazzi

Brunero

et al. 2014

Optical Switching and Networking

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WDM PONs offering point-to-point connectivity, independence of multiple access protocol to share the medium are good candidates for supporting the new fronthaul fibre network requirements. The necessity to allow inventory and maintenance cost reduction will favour WDM PON solutions based on colourless transceivers. We present the proposal of a network embedded self-tuning colourless transmitter, based on reflective semiconductor optical amplifier (RSOA) self-seeding architectures. We analyse the fibre-to-the-antenna network requirements and evidence the capabilities of the network embedded self-tuning colourless transmitter, showing its principle of operation, the development and the modelling of the active elements. We present and discuss recent experimental results up to 10 Gbit/s, which are encouraging for the transmitter exploitation in fronthaul WDM multiplexing technology

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Super-dense WDM transmission of spectrum-sliced incoherent light for wide-area access network

Cited by 28 publications

References 9 publications

Noise suppression of incoherent light using a gain-saturated SOA: implications for spectrum-sliced WDM systems

Noise suppression of incoherent light using a gain-saturated SOA: implications for spectrum-sliced WDM systems

Improving signal quality in a spectrum-sliced WDM system using SOA-based noise reduction

Self-tuning transmitter for fibre-to-the-antenna PON networks

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