16×16 strictly nonblocking guided-wave optical switching system

Murphy, Edmond J.; Murphy, T.; Ambrose, A. F.; Irvin, Robert W.; Lee, B.H.; Peng, Peng‐Chun; Richards, Gaylord W.; Yorinks, A.

doi:10.1109/50.485592

Cited by 51 publications

(11 citation statements)

References 12 publications

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“…The GaAs material system is generally less expensive than InP but materials grown on it cannot currently provide optical gain at the telecom band around 1550 nm like those grown on InP can. Both ROADMs and WSSs have been demonstrated in InP [6,7,8,30,35,49,74]. The first demonstrated ROADM in InP had 4-channels, consisting of AWGs and switches [49].…”

Section: Iii-v Semiconductor Photonic Devicesmentioning

confidence: 97%

“…They have been commercially very successful as data modulators using the electro-optic effect, and were instrumental in ushering in 10 Gb/s data rate transmission systems in the 1990s. While the commercial modulators widely used today contain essentially one switch each, larger arrays of switches have also been demonstrated [49]. Since LiNbO 3 waveguides are usually made by diffusion, the waveguide bend radii are consequently relatively large, making it difficult to realize the high density AWGs that are required for the demultiplexing function of the WSS devices.…”

Section: Lithium Niobate Photonic Devicesmentioning

confidence: 99%

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Wavelength selective switching for optical bandwidth management

Neilson¹,

Doerr²,

Marom³

et al. 2006

Bell Labs Tech. J.

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Section: Iii-v Semiconductor Photonic Devicesmentioning

confidence: 97%

Section: Lithium Niobate Photonic Devicesmentioning

confidence: 99%

Wavelength selective switching for optical bandwidth management

Neilson¹,

Doerr²,

Marom³

et al. 2006

Bell Labs Tech. J.

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“…Considerable work focusing on the use of directional couplers, Y-branch couplers, and Mach-Zehnder interferometers (MZI) has been done. The latter have been configured as 2 × 2 elements in the larger monolithic, multistage 16 × 16 and 32 × 32 switch matrices on LiNbO 3 [12][13][14]. More recently, 8 × 8 switch matrices have been fabricated on Silicon-on-Insulator [15]: Circuit level challenges have focused on improving the modest switch extinction ratios and relaxing the precision requirements for the voltage control.…”

Section: Monolithically Integrated Fast Optical Switchingmentioning

confidence: 99%

Towards Large-Scale Fast Reprogrammable SOA-Based Photonic Integrated Switch Circuits

Stabile

2017

Applied Sciences

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Due to the exponentially increasing connectivity and bandwidth demand from the Internet, the most advanced examples of medium-scale fast reconfigurable photonic integrated switch circuits are offered by research carried out for data-and computer-communication applications, where network flexibility at a high speed and high connectivity are provided to suit network demand. Recently we have prototyped optical switching circuits using monolithic integration technology with up to several hundreds of integrated optical components per chip for high connectivity. In this paper, the current status of fast reconfigurable medium-scale indium phosphide (InP) integrated photonic switch matrices based on the use of semiconductor optical amplifier (SOA) gates is reviewed, focusing on broadband and cross-connecting monolithic implementations, granting a connectivity of up to sixteen input ports, sixteen output ports, and sixty-four channels, respectively. The opportunities for increasing connectivity, enabling nanosecond order reconfigurability, and introducing distributed optical power monitoring at the physical layer are highlighted. Complementary architecture based on resonant switching elements on the same material platform are also discussed for power efficient switching. Performance projections related to the physical layer are presented and strategies for improvements are discussed in view of opening a route towards large-scale power efficient fast reprogrammable photonic integrated switching circuits.

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“…By layering the switch fabric, the dimensions of the switch layers can be dramatically reduced to a manageable size [7]- [9] for a high-capacity network. In the following analysis, the nonlayered, fully connected switch fabric is used as the standard for comparison and demonstration of the reduction in switch size in the layered switch architectures.…”

Section: Switch Architecture Designmentioning

confidence: 99%

Layered switch architectures for high-capacity optical transport networks

Lin

Karasan

Tkach

1998

IEEE J. Select. Areas Commun.

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Abstract-We propose and analyze layered switch architectures that possess high design flexibility, greatly reduced switch size, and high expandability. The improvement in loss and crosstalk due to the reduced switch size is also discussed. Theoretical models have been developed to compute the network blocking probability using these architectures. Low blocking probability and high network utilization are achieved because of the capability of communication between layers in adjacent switches. The results show that the proposed layered switch architectures are very attractive for high-capacity optical transport networks.

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16×16 strictly nonblocking guided-wave optical switching system

Cited by 51 publications

References 12 publications

Wavelength selective switching for optical bandwidth management

Wavelength selective switching for optical bandwidth management

Towards Large-Scale Fast Reprogrammable SOA-Based Photonic Integrated Switch Circuits

Layered switch architectures for high-capacity optical transport networks

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