We compare PMD and CD tolerances of 10 Gb/s directly-modulated transmission formats, including directly-modulated RZ-DPSK, RZ-OOK and NRZ-OOK, using a 1.55 μm commercially-available DML. Along with an increased recei...
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ISBN:
(纸本)0863415431
We compare PMD and CD tolerances of 10 Gb/s directly-modulated transmission formats, including directly-modulated RZ-DPSK, RZ-OOK and NRZ-OOK, using a 1.55 μm commercially-available DML. Along with an increased receiver sensitivity of 3 dB, we show experimentally that RZ DM-DPSK is more robust than directlymodulated RZ-OOK and NRZ-OOK to both PMD and CD.
This paper discusses the innovation in network architectures, and optical transport, that enables metropolitan networks to cost-effectively scale to hundreds Gb/s of capacity, and to hundreds km of re
This paper discusses the innovation in network architectures, and optical transport, that enables metropolitan networks to cost-effectively scale to hundreds Gb/s of capacity, and to hundreds km of re
We investigate the impact of narrow-band partial optical filtering at the transmitter or receiver in 10-Gb/s directly modulated systems and double the reach from 45-km without dispersion compensation.
ISBN:
(纸本)1557527776
We investigate the impact of narrow-band partial optical filtering at the transmitter or receiver in 10-Gb/s directly modulated systems and double the reach from <25-km to >45-km without dispersion compensation.
MPLS-TE (traffic engineering) fast reroute proposes a local protection mechanism to reroute protected TE LSPs (label switched paths) quickly onto precomputed and signaled bypass tunnels. The paper explores the case of...
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MPLS-TE (traffic engineering) fast reroute proposes a local protection mechanism to reroute protected TE LSPs (label switched paths) quickly onto precomputed and signaled bypass tunnels. The paper explores the case of multiple network element failure scenarios. The undesired complexity inherent in the multiple failure scenario originates from the fact that those failure scenarios are more disruptive, and may require multiple bypass tunnels to cope with them. The paper adapts the MPLS local recovery schemes to multi-failure scenarios, while controlling the number of bypass tunnels that are required. This is achieved by mapping multi-failure scenarios onto probable failure patterns (PFPs). PFPs are characterized by their probability (or frequency) of occurrence during the network lifetime. A number of bypass tunnels is then computed to cope effectively with the PFPs according to their frequency or probability of occurrence. It is shown that by properly choosing how the PFPs are grouped, and how the corresponding bypass tunnels are computed, it is possible to trade the required number of bypass tunnels for their average length and outage probability, i.e., the probability that the local recovery scheme cannot cope with the occurrence of a multi-failure pattern.
The ongoing and significant growth of data intensive applications in the Metropolitan Area Networks (MAN) has placed increasing emphasis on MAN architectures. The MAN has correspondingly evolved to address these servi...
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The ongoing and significant growth of data intensive applications in the Metropolitan Area Networks (MAN) has placed increasing emphasis on MAN architectures. The MAN has correspondingly evolved to address these service needs through metro access collector fiber rings which are internetworked through a larger regional MAN that connects to the long-haul (LH) network at selected Points of Presence (PoP). This paper dicusses optical technologies that will enable wavelength division multiplexing (WDM) to move into the MAN, and their associated design trade-offs.
In this presentation, we discuss optical technologies that will enable wavelength division multiplexing (WDM) to move into the metropolitan area networks (MAN), and their associated design trade-offs. Rapid growth of ...
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In this presentation, we discuss optical technologies that will enable wavelength division multiplexing (WDM) to move into the metropolitan area networks (MAN), and their associated design trade-offs. Rapid growth of demand in data services is pushing WDM technologies from the long-haul (LH) to MAN, and a new lower-cost form of WDM technology is emerging.
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