Optimum filter bandwidths for optically preamplified NRZ receivers

Winzer, Peter J.; Pfennigbauer, Martin; Strasser, Martin; Leeb, Walter R.

doi:10.1109/50.948273

Cited by 157 publications

(82 citation statements)

References 33 publications

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“…The other half of the signal is used to perform BER measurements on the data payload. The signal is optically preamplified with an erbiumdoped fiber amplifier (EDFA) and filtered again (BPF2) to remove the out-of-band ASE noise [14]. A burst-mode optical receiver (RX), which consists of a dc-coupled 10.7-Gb/s p-i-n that is integrated with a transimpedance amplifier and a limiting amplifier, digitizes the data payload in the channel.…”

Section: A Controlling the Polarization Of A Virtual Networkmentioning

confidence: 99%

Polarization-Dependent Gain in SOA-Based Optical Multistage Interconnection Networks

Liboiron-Ladouceur

Bergman

Boroditsky

et al. 2006

J. Lightwave Technol.

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Abstract-The small polarization dependence (< 1 dB) of optical components becomes significant in optical multistage interconnection networks. The cumulative effect can ultimately limit physical layer scalability by changing the maximum number of internal nodes that optical packets can traverse error free. It is shown that for nodes based on commercial semiconductor optical amplifier (SOA) switches with polarization-dependent gains of less than 0.35 dB, the maximum number of cascaded nodes changes by as much as 20 nodes, depending on both the packet wavelength and its state of polarization. This deviation in the number of nodes could correspond to a 100-fold decrease in the number of interconnected ports of an optical interconnection network such as the data vortex. This dramatic effect is explained in terms of optical signal-to-noise ratio degradation due to accumulated amplified spontaneous emission noise originating from the SOA device in the node.Index Terms-Multistage interconnection networks (MINs), optical packet switching, polarization-sensitive devices, semiconductor optical amplifier (SOA).

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Section: A Controlling the Polarization Of A Virtual Networkmentioning

confidence: 99%

Polarization-Dependent Gain in SOA-Based Optical Multistage Interconnection Networks

Liboiron-Ladouceur

Bergman

Boroditsky

et al. 2006

J. Lightwave Technol.

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show abstract

“…After the appearance of optical amplifiers, the amplified-spontaneous emission (ASE) becomes the most dominant noise source that mixes with the optical channel at the photo-detector [3][4][5]. For the analysis of optical receivers in the presence of the ASE, there are exact methods using receiver eigenmodes in the time domain [6][7][8][9] and in the optical spectral domain [10][11][12][13]. The time domain analyses have been developed initially for radiofrequency receivers.…”

Section: Introductionmentioning

confidence: 99%

Time-dependent Analysis of Optical Receivers Using Receiver Eigenmodes

Seo¹,

Lee²,

Willner³

2013

Journal of the Optical Society of Korea

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Using receiver eigenmodes, we perform a time-dependent analysis of optical receivers whose optical inputs are corrupted by the amplified spontaneous emission. We use Gaussian receivers for the analysis with Gaussian input pulses. We find the number of contributing eigenmodes increases as the measurement time moves from the pulse center towards the pulse edges at the output of the optical receiver's electrical filter. This behavior is dependent on the bandwidth ratio between the optical and the electrical filters as well as the input pulse's time width.

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“…Using the receiver eigenmodes [6][7][8][9][10][11][12], we derive the joint characteristic function (JCF) for two successive data from an optical receiver and evaluate the corresponding joint probability density function (JPDF) [13]. The receiver eigenmodes can describe accurately the effects of the amplified spontaneous emission (ASE), received optical waveforms, and shapes of optical and electrical filters within the receiver [7].…”

Section: Introductionmentioning

confidence: 99%

Joint Probability Density Functions for Direct-Detection Optical Receivers

Lee

2014

Journal of the Optical Society of Korea

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We derive joint probability density functions (JPDFs) for two adjacent data from direct-detection optical receivers in dense wavelength-division multiplexing systems. We show that the decision using two data per bit can increase the receiver sensitivity compared with the conventional decision. Our JPDFs can be used for software-defined optical receivers enhancing the receiver sensitivities for intensity-modulated channels.

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Optimum filter bandwidths for optically preamplified NRZ receivers

Cited by 157 publications

References 33 publications

Polarization-Dependent Gain in SOA-Based Optical Multistage Interconnection Networks

Polarization-Dependent Gain in SOA-Based Optical Multistage Interconnection Networks

Time-dependent Analysis of Optical Receivers Using Receiver Eigenmodes

Joint Probability Density Functions for Direct-Detection Optical Receivers

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