First 8×8 semiconductor optical matrix switches using GaAs/AlGaAs electro-optic guided-wave directional couplers

Hamamoto, Kiichi; Anan, T.; Komatsu, K.; Sugimoto, M.; Mito, I.

doi:10.1049/el:19920278

Cited by 46 publications

(7 citation statements)

References 1 publication

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“…Early demonstrations included the use of directional couplers (DCs) and MZIs. DC-based switches were integrated with up to 8 × 8 connectivity on GaAs substrate [45], but the manufacturing control of the coupling length was proved difficult. MRR element was also explored and a recent demonstration showed a 4 × 4 circuit [46].…”

Section: Interferometric Optical Switchesmentioning

confidence: 99%

Photonic switching in high performance datacenters [Invited]

et al. 2018

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Photonic switches are increasingly considered for insertion in high performance datacenter architectures to meet the growing performance demands of interconnection networks. We provide an overview of photonic switching technologies and develop an evaluation methodology for assessing their potential impact on datacenter performance. We begin with a review of three categories of optical switches, namely, free-space switches, III-V integrated switches and silicon integrated switches. The state-of-the-art of MEMS, LCOS, SOA, MZI and MRR switching technologies are covered, together with insights on their performance limitations and scalability considerations. The performance metrics that are required for optical switches to truly emerge in datacenters are discussed and summarized, with special focus on the switching time, cost, power consumption, scalability and optical power penalty. Furthermore, the Pareto front of the switch metric space is analyzed. Finally, we propose a hybrid integrated switch fabric design using the III-V/Si wafer bonding technique and investigate its potential impact on realizing reduced cost and power penalty.

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Section: Interferometric Optical Switchesmentioning

confidence: 99%

Photonic switching in high performance datacenters [Invited]

et al. 2018

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“…Optical switch fabrics for packet routers, on the other hand, require switching times in the nanosecond regime. Several technologies have been used to build active electrooptic switch fabrics, e.g., LiNbO matrix switches [7], [8] and semiconductor optical amplifier (SOA)-based matrix switches [9], [10]. These matrices consist of large numbers of optical 2 2 switches that are connected in Banyan-type configurations.…”

Section: Optical Switch Fabricsmentioning

confidence: 99%

Optical switch fabrics for ultra-high-capacity IP routers

Gripp¹,

Duelk²,

Simsarian³

et al. 2003

J. Lightwave Technol.

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Next-generation switches and routers may rely on optical switch fabrics to overcome scalability problems that arise in sizing traditional electrical backplanes into the terabit regime. In this paper, we present and discuss several optical switch fabric technologies. We describe a promising approach based on arrayed waveguide gratings and fast wavelength tuning and explain the challenges with respect to technical and commercial viability. Finally, we demonstrate an optical switch fabric capable of 1.2-Tb/s throughput and show packet switching with four ports running at 40 Gb/s each.

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“…LiNbO 3 matrix switches [17], [18] ! SOA based matrix switches [19], [20] LiNbO 3 NxN switch fabrics consist basically of N 2 optical 2x2 switches and feature fast switching times (<10 ns). They have high insertion losses that additionally depend on the size of the matrix and typically scale with N 2 .…”

Section: Optical Router Architecturesmentioning

confidence: 99%

<title>Next generation packet routers</title>

Duelk¹,

Gripp²,

Simsarian³

et al. 2002

SPIE Proceedings

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Current IP/ATM routers use an electrical switching fabric/backplane and either optical or electrical interconnects between the line cards to route data. An electrical backplane and associated connectors limit the number of high speed interconnections due to practical considerations. Scaling these so-called third generation routers to the terabit regime with high port densities faces enormous problems due to the high interconnect and electrical power density. Packet routers with an optical switching fabric are considered as the next generation of IP/ATM Multi-Service routers which enable scalability towards the Terabit and Petabit regime. In this paper, various architectures with electrically active or passive optical switch fabrics will be highlighted and differences in terms of switching speed and scalability will be discussed. Recent results using a passive Array Waveguide Grating (AWG) router and fast wavelength tunable laser are presented in the second half of this paper.

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First 8×8 semiconductor optical matrix switches using GaAs/AlGaAs electro-optic guided-wave directional couplers

Cited by 46 publications

References 1 publication

Photonic switching in high performance datacenters [Invited]

Photonic switching in high performance datacenters [Invited]

Optical switch fabrics for ultra-high-capacity IP routers

<title>Next generation packet routers</title>

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