The evolution of optical systems: Optics everywhere

Alferness, R. C.; Kogelnik, H.; Wood, Thomas H.

doi:10.1002/bltj.2214

Cited by 38 publications

(12 citation statements)

References 25 publications

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“…These helically propagating light beams form optical vortices inside the fiber as they carry their Orbital Angular Momentum (OAM) 2,3 ; hence, the output of these beams appear as concentric donut shaped rings when projected on a screen. As a result this technique adds a new dimension, space, to the currently popular multiplexing schemes such as TDM 4 and WDM [5][6][7] with the potential to increase the bandwidth of existing and futuristic optical fiber systems by multiple folds. SDM 8 allows propagation of multiple optical channels inside the core of a single fiber as a function of location.…”

Section: Introductionmentioning

confidence: 98%

Analysis of spatial domain multiplexing/space division multiplexing (SDM) based hybrid architectures operating in tandem with wavelength division multiplexing

et al. 2014

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Spatial domain multiplexing (SDM) also known as space division multiplexing adds a new degree of photon freedom to existing optical fiber multiplexing techniques by allocating separate radial locations to different MIMO channels as a function of the input launch angle. These independent MIMO channels remain confined to the designated location while traversing the length of the carrier fiber, due to helical propagation of light inside the fiber core. The SDM technique can be used in tandem with other multiplexing techniques, such as time division multiplexing (TDM), and wavelength division multiplexing in hybrid optical communication schemes, to achieve higher optical fiber bandwidth by increasing the photon efficiency due to added degrees of photon freedom. This paper presents the feasibility of a novel hybrid optical fiber communications architecture and shows that SDM channels of different operating wavelengths continue to follow the input launch angle based radial distribution pattern.

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Section: Introductionmentioning

confidence: 98%

Analysis of spatial domain multiplexing/space division multiplexing (SDM) based hybrid architectures operating in tandem with wavelength division multiplexing

et al. 2014

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“…Over the past decade, the phenomenal growth of the Internet traffic and the rapid advances of optical technologies have continuously driven the evolution of the optical Internet [1]. As the demand increases, the need to have all optical networks increases.…”

Section: Introductionmentioning

confidence: 99%

“…As the demand increases, the need to have all optical networks increases. These alloptical networks are those that transfer the data between the ends without the need to convert them to the electronic domain at each node [1]. To move towards IP-over-WDM architectures, various optical switching techniques have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Burst Assembly Mechanism with Hybrid Signaling Scheme for Optical Burst Switched Networks

Borah

Bhattacharyya

2007

15th International Conference on Advanced Computing and Communications (ADCOM 2007)

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In this paper, an enhanced burst assembly mechanism, utilizing the offset time effectively for assembling the incoming packets, is proposed for optical burst switched (OBS) networks. The channel utilization, end-to-end delay and packet transmission rate of proposed burst assembly method are compared with those of existing burst assembly methods. A hybrid signaling scheme is used to implement the proposed burst assembly. The performance of hybrid signaling is compared with existing signaling schemes. However, Just Enough Time (JET) signaling gives better performance than the hybrid signaling scheme. Therefore, a prediction technique is incorporated to use JET signaling scheme in the proposed burst assembly method. The prediction error occurring in this method is calculated and the average number of contentions encountered in the proposed burst assembly method is determined.

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“…However, some points remain to be solved in order to make WSONs more autonomous. Transparent network management and operations must address special constraints such as global wavelength continuity from the source node to the destination node [22] and the preservation of physical performance of the optical signal [1,2] so as to limit OEO regeneration needs. Concerning the first constraint, on each link (between two nodes) of the light-path connection (i.e., the transparent sub-path between two OEO conversions) it is not sufficient to have wavelength channels available.…”

Section: Introductionmentioning

confidence: 99%

Wavelength layer recovery in transparent optical networks

Morea¹,

Kilper²,

Verchere³

et al. 2010

Bell Labs Tech. J.

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degradation can cause a loss of several hundreds of gigabytes of data per second. As repair of a fiber break may take several hours, network operators need to be able to restore the lost traffic demands by rerouting the affected traffic around the network failure. Consequently there is increasing motivation to utilize fast wavelength recovery capabilities and thereby minimize the wavelength service interruption time and congestion due to protection implemented in the higher layers.

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The evolution of optical systems: Optics everywhere

Cited by 38 publications

References 25 publications

Analysis of spatial domain multiplexing/space division multiplexing (SDM) based hybrid architectures operating in tandem with wavelength division multiplexing

Analysis of spatial domain multiplexing/space division multiplexing (SDM) based hybrid architectures operating in tandem with wavelength division multiplexing

Enhanced Burst Assembly Mechanism with Hybrid Signaling Scheme for Optical Burst Switched Networks

Wavelength layer recovery in transparent optical networks

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