Spectral slicing WDM-PON using wavelength-seeded reflective SOAs

Healey, P.; Townsend, Paul D.; Ford, C.W.; Johnston, L.; Townley, P.; Lealman, I.F.; Rivers, L.J.; Perrin, S.D.; Moore, R.

doi:10.1049/el:20010786

Cited by 199 publications

(64 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although these ideas have attracted much attention over the years and especially the injection-or wavelengthlocking scheme has been already commercialized, further efforts have been placed to increase transmission speed per wavelength and, at the same time, to simplify the link structure by eliminating light sources such as BLS which were used in addition to the light sources used for carrying the data. As a part of the efforts, the remodulation (RM) schemes in which the downstream optical signal is reused for upstream transmission have been developed, based on the usage of an RSOA as a colorless source [9][10][11][12][13][14][15]. As shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

RSOA-Based Wavelength-Reuse Gigabit WDM-PON

Kim

2008

Journal of the Optical Society of Korea

View full text Add to dashboard Cite

This article presents the RSOA-based re-modulation schemes for practical application to the WDM-PON link. Emphasis is put on the three methods for reducing the residual downstream signal in the upstream transmission; the simplest one is to use the RSOA gain-saturation property, the second uses selective filtering of the adiabatic-chirped DFB-LD output spectrum, and the last uses a dynamic RSOA gain control by varying its driving current according to the incident binary signal. The reflection sensitivity in the proposed re-modulation link is also qualitatively presented in the cases of using two different types of seed light: coherent light from DFB-LD array and spectrum-sliced incoherent ASE light. We show experimental results of an error-free bidirectional gigabit transmission over 20 km at -30 dB reflection with the spectrum-sliced ASE seed light.

show abstract

Section: Introductionmentioning

confidence: 99%

RSOA-Based Wavelength-Reuse Gigabit WDM-PON

Kim

2008

Journal of the Optical Society of Korea

View full text Add to dashboard Cite

show abstract

“…One such approach uses the nonlinear gain compression of a saturated semiconductor optical amplifier (SOA) to suppress the intensity noise of the input thermal light [5]. This technique has the added benefit in that, ideally the SOA can also be used for signal modulation and amplification [6]. Reducing the intensity noise enables finer channel granularity and thus higher spectral efficiency.…”

Section: Introductionmentioning

confidence: 99%

Filtering Effects in a Spectrum-Sliced WDM System Using SOA-Based Noise Reduction

McCoy

Thomsen

Ibsen

et al. 2004

IEEE Photon. Technol. Lett.

View full text Add to dashboard Cite

Abstract-We present an experimental investigation into the effects of receiver filtering on the intensity noise in a spectrum-sliced incoherent light system incorporating semiconductor optical amplifier (SOA) based noise reduction. Spectral filtering of the SOA output degrades the signal quality, reducing the benefit offered by the SOA. However, narrow filters are required to reduce the crosstalk in high channel density systems. We characterize this tradeoff and find the optimum receiver bandwidth for varying channel spacing configurations in a spectrum-sliced wavelength-division multiplexed (WDM) system. Index Terms-Optical noise, semiconductor optical amplifier (SOA), spectrum slicing, wavelength division multiplexing (WDM).

show abstract

“…The first results have been proposed in [18], where the uplink data stream was reflected and modulated via the RSOA at 1.25 Gbit/s, as then further developed and investigated in several later works (e.g. [19][20][21][22]).…”

Section: Key Components For the Reflective Onumentioning

confidence: 99%