Noise characteristics of fiber-based optical phase conjugators

Hedekvist, Per Olof; Anderson, PN

doi:10.1109/50.737424

Cited by 31 publications

(5 citation statements)

References 16 publications

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“…The low optical signalto-noise ratio (OSNR) of the converted signal also contributes to the penalty as higher OSNR helps suppressing residual pump. The receiver sensitivity for the converted signal could be improved by better filtering away the residual CW pump or increasing the pump power, which would improve the conversion efficiency and result in an increased OSNR [21]. Silicon suffers from two-photon absorption (TPA) in the telecommunication wavelength range, thus the pump power should be kept below the TPA shreshold (~39 dBm) to suppress the freecarrier induced loss [12].…”

Section: Experiments Results With a Single-pump Configurationmentioning

confidence: 99%

Polarization insensitive wavelength conversion in a dispersion-engineered silicon waveguide

Peucheret

et al. 2012

Opt. Express

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Section: Experiments Results With a Single-pump Configurationmentioning

confidence: 99%

Polarization insensitive wavelength conversion in a dispersion-engineered silicon waveguide

Peucheret

et al. 2012

Opt. Express

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“…For an ideal EDFA with n sp = 1, the noise figure can be expressed as: F n = 2 − 1/ G 30 . In the wavelength conversion process, the conversion efficiency η is critical, and the quantum-limited noise figure can be expressed as: F n = 2 + 1/ η 32 . If this conversion is accompanied with amplification ( G ), then the noise figure becomes: F n = 2 G /( G -1) 33 .…”

Section: Methodsmentioning

confidence: 99%

Ultrafast and versatile spectroscopy by temporal Fourier transform

Zhang

Wei

Marhic

et al. 2014

Sci Rep

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One of the most remarkable and useful properties of a spatially converging lens system is its inherent ability to perform the Fourier transform; the same applies for the time-lens system. At the back focal plane of the time-lens, the spectral information can be instantaneously obtained in the time axis. By implementing temporal Fourier transform for spectroscopy applications, this time-lens-based architecture can provide orders of magnitude improvement over the state-of-art spatial-dispersion-based spectroscopy in terms of the frame rate. On the other hand, in addition to the single-lens structure, the multi-lens structures (e.g. telescope or wide-angle scope) will provide very versatile operating conditions. Leveraging the merit of instantaneous response, as well as the flexible lens structure, here we present a 100-MHz frame rate spectroscopy system – the parametric spectro-temporal analyzer (PASTA), which achieves 17 times zoom in/out ratio for different observation ranges.

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“…Here, we have used the OPC placement method proposed by P. Minzioni et al [10] to remove all in-line dispersion compensators, reducing span losses and system cost, assuming the normal dispersion region is used for transmission and the amplifier spacing is properly chosen. Both semiconductor optical amplifier (SOA) based OPC as well as dispersion shifted fiber (DSF) based OPC in the 40 Gbit/s POLSK systems are evaluated in the systems [11,12]. Fig.…”

Section: Optical Link Modelmentioning

confidence: 99%

40Gbit/s polarization modulation in ultra-long haul transmission systems by using optical phase conjugators

Low

Chan

Chien

et al. 2004

IEICE Electron. Express

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In this paper, we present a numerical investigation on the performance of 40 Gbit/s polarization modulation (POLSK) in ultralong haul transmission systems by using optical phase conjugator (OPC). The effects of both semiconductor optical amplifier (SOA) and dispersion shifted fiber (DSF) based OPCs on the 10,000 km system are investigated. It is found that only 53 SOA based OPCs are needed in order to achieve the bit-error-rate (BER) of less than 10 −9 in comparison to 69 DSF based OPCs. In addition, with the introduction of 100 SOA based OPCs, the system can withstand the fiber nonlinearity of up to 2.0 W −1 km −1 for a 15,000 km transmission distance.

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Noise characteristics of fiber-based optical phase conjugators

Cited by 31 publications

References 16 publications

Polarization insensitive wavelength conversion in a dispersion-engineered silicon waveguide

Polarization insensitive wavelength conversion in a dispersion-engineered silicon waveguide

Ultrafast and versatile spectroscopy by temporal Fourier transform

40Gbit/s polarization modulation in ultra-long haul transmission systems by using optical phase conjugators

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