Analysis of linear crosstalk in photonic crossbar switches based on on/off gates

Jeong, Goojin; Goodman, Joseph W.

doi:10.1109/50.485593

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…The calculations performed by Buckman are also included for the cases of Gaussian and numerically determined distributions for incoherent crosstalk characteristics. It is evident from figure 6 that the level of crosstalk which may be accomodated is significantly higher for incoherent forms of crosstalk (Goldstein et al, 1994;Buckman et al, 1997;Yang & Yao, 1996;Jeong & Goodman, 1996;). Switch extinction ratio is related to crosstalk at the circuit level.…”

Section: Crosstalkmentioning

confidence: 99%

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Williams

2011

Advances in Optical Amplifiers

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Section: Crosstalkmentioning

confidence: 99%

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Williams

2011

Advances in Optical Amplifiers

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“…For simplicity, we have assumed that the data channels carried by the fields each use binary amplitude-shift keying with infinite extinction ratio and equal probability of data 'ones and 'zeroes , and that each channel carries independent data. The channels are also assumed to be bit-synchronized, as this gives the maximum BER degradation [21]. The calculations also assume that the average received power of the main signal is 0 dBm, the thermal noise figure of the receiver is 5.5 dB, and the receiver threshold is set at the long-term average received power (DC coupled) [6,14].…”

Section: Analysis Of Two Interference Sourcesmentioning

confidence: 99%

Analysis of Incoherent Homodyne Crosstalk in Optical Networks

Dods¹,

Tucker²

2002

Journal of Optical Communications

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We present an analytical method for calculating bit-error rates and power penalties due to two incoherent homodyne (in-band) crosstalk sources interfering with an optical signal. The power penalties predicted by this analysis are in excellent agreement with results from numerical simulations. We also examine the conditions under which a second crosstalk source causes a significant increase in power penalty over a single crosstalk source. We find that the additional degradation due to the second crosstalk source is negligible if it has a power level that is more than 30 dB smaller than the first.

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“…Recently, a scheme for bit-skew compensation for long distance parallel data link using WDM transmission was suggested by Jeong and Goodman [9]. They proposed an electronic feedback method using a training sequence for adaptive bit-skew compensation.…”

Section: Skew and Walk-off Considerationmentioning

confidence: 99%

Advances in multi-channel optical multi-gbytes/sec bit-parallel WDM single fiber link

Bergman

Yeh²,

Morookian³

2000 Proceedings. 50th Electronic Components and Technology Conference (Cat. No.00CH37070)

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For ultra-high-speed single media parallel interconnects, an all optical single fiber WDM format of transmitting parallel bits rather than a fiber ribbon format-where parallel bits are sent through corresponding parallel fibers in a ribbon format, can be the media of choice. Here, we shall discuss the realization of a multi-km x gbytedsec bit-parallel WDM (BP-WDM) single fiber link. The distance-speed product of this single fiber link is more than several orders of magnitude higher than that of a fiber ribbon link. The design of a 12 bitparallel channels WDM system operating at 1 Gbit/sec per channel rate through a single fiber will first be presented. Experimental results for a two channel system operating at that rate are given. Further improvement of distance-speed product for the BP-WDM link can be obtained with JPL's newly developed 20 Gbitdsec per channel laser diode array transmitter. Also, new computer simulation results on how a large amplitude co-propagating pulse may induce pulse compression on all the co-propagating data pulses, thereby improving the shaping of these pulses for a WDM system, will be presented and discussed. The existence of WDM solitons is also shown. Background and IntroductionFor high performance computing environments, clusters of MPP supercomputers can be envisioned. This concept elevates the cluster computing model to a new level. In this case, not only is high bandwidth and low latency required, but now inter-channel message synchronization also becomes important among the parallel network channels entering the machine -especially if all machines are tightly coupled together to work on one large problem. In the limit, the aggregate bandwidth required to interconnect two large MPP supercomputers approaches the bisection bandwidth of the internal communication network of the machine.For example, in a 2"-node hypercube interconnected MPP architecture, there would be up to 2"-l links between each half of the machine (e.g., 1024 processor nodes would have 512 links at 200MB/s per link, or 102 GB/s total).The need for a single media parallel interconnect is apparent. Thus, the all optical single fiber WDM format of transmitting parallel bits rather than a fiber ribbon format may be the media of choice. This single fiber bit parallel wavelength link can be used to extend the (speed-distance) product of emerging cluster computer networks, such as, the MyriNet, SCI, Hippi-6400, ShuffleNet, etc. Time alignment of the bit-parallel pulses is of paramount importance.Unlike the usual wavelength division multiplexed (WDM) format where input parallel pulses are first converted into a series of single pulses which are then launched on different wavelength beams into a single-mode fiber, the bitparallel (BP) WDM format was proposed [1,2]. Under this BP-WDM format, no parallel to serial conversion of the input signal is necessary, parallel pulses are launched simultaneously on different wavelength beams. Time alignment of the pulses for a given signal byte is very important.There exists a competin...

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Analysis of linear crosstalk in photonic crossbar switches based on on/off gates

Cited by 11 publications

References 12 publications

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Analysis of Incoherent Homodyne Crosstalk in Optical Networks

Advances in multi-channel optical multi-gbytes/sec bit-parallel WDM single fiber link

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