Performance implications of component crosstalk in transparent lightwave networks

Goldstein, E.L.; Eskildsen, L.; Elrefaie, Aly F.

doi:10.1109/68.285571

Cited by 277 publications

(74 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…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: 93%

“…If the path length differences are minimised to less than one bit period and the wavelengths are stable, as might be anticipated in a monolithic multistage network, phase difference becomes invariant and less problematic (Dods et al, 1997). Coherent crosstalk can incur an overhead of order 10dB on the crosstalk requirement (Goldstein et al, 1994;Goldstein & Eskildsen, 1995;Eskildsen & Hansen, 1997) and this has led some to suggest a -40dB extinction ratio requirement for telecommunication networks using an optical switch technology (Larsen and Gustavsson, 1997). Figure 6 summarises representative quantifying the role of crosstalk on signal degradation.…”

Section: Crosstalkmentioning

confidence: 99%

See 1 more Smart Citation

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Williams

2011

Advances in Optical Amplifiers

View full text Add to dashboard Cite

Section: Crosstalkmentioning

confidence: 93%

Section: Crosstalkmentioning

confidence: 99%

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Williams

2011

Advances in Optical Amplifiers

View full text Add to dashboard Cite

“…Then, it is easily shown that a closed form expression for U is (4) and the total average transit delay, that is the sum of the propagation delay H and the possible internal queueing delay normalized by the hop propagation delay, is The values of the average number of hops ( H ) and probability of don't care (Pdc) can be obtained considering a probability of cell deflection p = 0 (for this case) and that the random walk of a test cell toward destination is modeled as an absorbing Markov chain whose states are deked by the network nodes, the only absorbing state being the destination node as in 131, [121. (2) and (3), except that in this case p is not conditionedon the buffer being empty, and p is conditioned on the probability that no new cells from the submodule are present for transmission ( 1 -9).…”

Section: Access Schemesmentioning

confidence: 99%

“…The probability that one of the buffers is empty (4). is given by 0.l transmission (9) times the probability that both buffers are empty (q2) times the probability that at least one of the two slots is free…”

Section: Access Schemesmentioning

confidence: 99%

“…Thus, deflection routing allows the use of fiber l i s as optical buffers [11-[31 while bit-rate non-regenerative transparency is maintained. Such an advantage in traffic management causes a major weakness in transmission [4]. It has been shown 151 that the quality of signals degrades with traffic load due to accumulation of weak noises such as the amplifier spontaneous emission (ASE) noise and coherent crosstalk in high-speed transparent optical networks.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Combined teletraffic/transmission performance of optical cross-connected networks using hybrid-store-and-forward

Castañón

Tonguz²,

Bononi³

GLOBECOM 97. IEEE Global Telecommunications Conference. Conference Record

View full text Add to dashboard Cite

Abstract-Transparent multihop optical networks suffer fiom the accumulation, from node to node, of intraband crosstalk and amplifier spontaneous emission noise, which may severely degrade the quality of received signals. This paper presents a hybrid semitransparent store-and-forward (H-S&F) node architecture which minimizes the number of hops and, therefore, significantly improves the quality of signals. Cells are electronically stored just in the case of conflict to avoid deflection, otherwise cells traverse the node without opto-electronic conversion. We present the teletraffic and transmission performance of regular two-connected networks in uniform traffic. Manhattan Street (MS) Network and ShuffleNet (SN) are compared both analytically and by simulation. H-S&F performs well, in tenns of throughput, transit delay and BER. It is also shown that by combining deflection routing with the storeand-forward scheme the network can accommmodate two different bit-rates. This suggests that the proposed hybrid scheme may have good potential for future multimedia networks.

show abstract

Modeling of an all-optical time-division demultiplexer

Swift

Ghassemlooy

Ray

et al. 1997

Microw. Opt. Technol. Lett.

View full text Add to dashboard Cite

on the feed position; s 3.0, h s 0.762 mm, d s 6.0 cm, d s 5.196 r h cm, s 90Њ pimpedances are also presented, and the cavity-model solutions in general agree with the measured data. The deviation of the resonant frequency between the theory and experiment is within 0.6% in the case studied here. And from the results, it is seen that the input resistance level decreases with decreasing cylinder radius. To show the results more clearly, the input resistance at resonant frequency as a function of feed position for different cylinder radii is presented in Figure 4. The feed position is chosen from section AB of Ž . length d the height of the triangle; see Figure 1 . And z in h p this case also represents the distance between the triangle tip and the feed position. From the results, it is also seen that there exists a null input resistance at z rd ; 0.67. At this p h point, the excited electric field inside the cavity for the TM 10 mode is zero. In summary, cavity-model solutions of the cylindrical triangular microstrip antenna have been derived and analyzed. And since the computation of the cavity-model solution is w x usually more efficient than that of the full-wave solution 3 , the results presented in this paper can find applications in computer-aided design of triangular microstrip antennas mounted on cylindrical surfaces. ABSTRACT: A model for the terahertz optical asymmetric demultiplexer ( ) TOAD is presented, and its performance is assessed. A numerical ( ) model of a semiconductor laser amplifier SLA used as a nonlinear element is also gi¨en. Results of SLA carrier density, switching window, pulse switching, and a comparison of phase modulation and power gain for a frame rate higher than the recombination are presented. Also in¨estigated is the required optimum loop asymmetry for producing the desired switching window for channel selection, with reduced crosstalk, at the output port.

show abstract

Performance implications of component crosstalk in transparent lightwave networks

Cited by 277 publications

References 5 publications

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Combined teletraffic/transmission performance of optical cross-connected networks using hybrid-store-and-forward

Modeling of an all-optical time-division demultiplexer

Contact Info

Product

Resources

About