All-optical phase regeneration of 40Gbit/s DPSK signals in a black-box phase sensitive amplifier

Parmigiani,; Slavik,; Kakande,; Lundstrom,; Sjodin,; Andrekson,; Weerasuriya,; Sygletos,; Ellis,; Gruner-Nielsen,; Jakobsen,; Herstrm,; Phelan,; O'Gorman,; Bogris,; Syvridis,; Dasgupta,; Petropoulos, P.; Richardson, David J.

doi:10.1364/ofc.2010.pdpc3

Cited by 16 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our approach 16 provides amplitude and phase regeneration in a degenerate PSA, however the pumps are generated and phase-locked locally, enabling 'black-box' operation. First, we tap the data signal and send it to the Carrier Recovery/Pump Phase Locking unit, see Fig.…”

mentioning

confidence: 99%

All-optical phase and amplitude regenerator for next-generation telecommunications systems

et al. 2010

Self Cite

View full text Add to dashboard Cite

Fibre optic communication systems have traditionally carried data using binary (on-off) encoding of the light amplitude. However, next generation systems will exploit both the amplitude and phase of the optical carrier to achieve higher spectral efficiencies and thus higher overall data capacities 1,2. Although this approach requires highly complex transmitters and receivers, the increased capacity and many further practical benefits that accrue from a full knowledge of the amplitude and phase of the optical-field 3 , more than outweigh this additional hardware complexity and can greatly simplify optical network design. However, use of the complex optical-field gives rise to a new dominant limitation to system performance, namely nonlinear phase noise 4,5. A device for removal of this noise therefore becomes of great technical importance. Here we report the development of the first practical ('black-box') all-optical regenerator capable of removing both phase and amplitude noise from binary phase-encoded optical communication signals.

show abstract

mentioning

confidence: 99%

All-optical phase and amplitude regenerator for next-generation telecommunications systems

et al. 2010

Self Cite

View full text Add to dashboard Cite

show abstract

“…Phase-sensitive parametric amplifiers (PSAs), which amplify in-phase components and attenuate quadrature components, are attractive because they are capable of suppressing the phase noise of differential phase shift keying (DPSK) signals [1,2]. And studies on the saturation effect of PSAs have been reported [3,4].…”

mentioning

confidence: 99%

Evolution of the gain extinction ratio in dual-pump phase sensitive amplification

et al. 2012

View full text Add to dashboard Cite

We have experimentally achieved a gain extinction ratio (GER) of 30 dB at 21.75 dBm pump power in a dual-pump phase sensitive amplifier based on highly nonlinear fiber, which is more efficient than what we predict with the conventional three-wave model. We point out that high-order sidebands play a key role. Then we scrutinize the trajectories of the output signal vector in the complex plane with increasing nonlinear phase shift and understand the roll-over behavior of GER versus pump power curve. We found that the phase "flip" of the output signal occurs around the largest GER. Adjusting design parameters, we show how to improve GER.

show abstract

“…This caused a BER error floor for higher phase noise levels. Using other types of phase noise (non-Gaussian sinusoidal) would make the degradation clearly observed on the constellation diagram [7,8] …”

Section: Resultsmentioning

confidence: 99%

“…In order to increase the transmission distance and improve the operation margin, regeneration and efficient modulation formats should be employed [3,4]. Regeneration can be realized either in the electronic domain through optical-electrical-optical (OEO) conversion, or purely in the optical domain using non-linear devices such as semiconductor optical amplifiers (SOA) or highly non-linear fibers (HNLF) [4][5][6][7][8]. Different advantages and drawbacks are claimed for each approach.…”

Section: Introductionmentioning

confidence: 99%

Novel synchronous DPSK optical regenerator based on a feed-forward based carrier extraction scheme

Ibrahim¹,

Sygletos²,

Rafique³

et al. 2011

Opt. Express

Self Cite

View full text Add to dashboard Cite

We experimentally demonstrate a novel synchronous 10.66Gbit/s DPSK OEO regenerator which uses a feed-forward carrier extraction scheme with an injection-locked laser to synchronize the regenerated signal wavelength to the incoming signal wavelength. After injection-locking, a low-cost DFB laser used at the regenerator exhibited the same linewidth characteristics as the narrow line-width transmitter laser. The phase regeneration properties of the regenerator were evaluated by emulating random Gaussian phase noise applied to the DPSK signal before the regenerator using a phase modulator driven by an arbitrary waveform generator. The overall performance was evaluated in terms of electrical eyediagrams, BER measurements, and constellation diagrams. Mizoguchi, H. Yamazaki, Y. Sakamaki, and H. Ishii, "69.1-Tb/s (432x171-Gb/s) C-and extended L-band transmission over 240 km using PDM-16-QAM modulation and digital coherent detection," Proc. ©2011 Optical Society of America

show abstract

All-optical phase regeneration of 40Gbit/s DPSK signals in a black-box phase sensitive amplifier

Abstract: Abstract:We present a black-box four wave mixing based bit-rate-flexible phase sensitive amplifier and use it in the first demonstration of 40 Gbit/s DPSK phase regeneration.

Cited by 16 publications

References 6 publications

All-optical phase and amplitude regenerator for next-generation telecommunications systems

All-optical phase and amplitude regenerator for next-generation telecommunications systems

Evolution of the gain extinction ratio in dual-pump phase sensitive amplification

Novel synchronous DPSK optical regenerator based on a feed-forward based carrier extraction scheme

Contact Info

Product

Resources

About