Ultra-compact 32 × 32 strictly-non-blocking Si-wire optical switch with fan-out LGA interposer

Tanizawa, Ken; Suzuki, Keijiro; Toyama, Munehiro; Ohtsuka, Minoru; Yokoyama, Naoki; Matsumaro, Kazuyuki; Seki, Masayuki; Koshino, Kazuki; Sugaya, Toshio; Suda, Satoshi; Cong, Guangwei; Kimura, T.; Ikeda, Kazuhiro; Namiki, Shu; Kawashima, Hitoshi

doi:10.1364/oe.23.017599

Cited by 164 publications

(59 citation statements)

References 7 publications

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“…Recently, an ultra-compact 32 × 32 strictly-nonblocking Si-wire optical switch packaged with a land grid array (LGA) interposer has been developed by National Institute of Advanced Industrial Science and Technology (AIST) [77]. The optical switch integrates 1024 thermooptic Mach-Zehnder (MZ) switches and 961 intersections on a very small, 11 × 25 mm 2 die.…”

Section: Silicon Photonic Switchmentioning

confidence: 99%

Optical Networking Paradigm: Past, Recent Trends and Future Directions

Oki

Wada

Okamoto

et al. 2017

IEICE Trans. Commun.

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SUMMARY This paper presents past and recent trends of optical networks and addresses the future directions. First, we describe path networks with the historical backgrounds and trends. path networks have advanced by using various multiplexing technologies. They include time-division multiplexing (TDM), asynchronous transfer mode (ATM), and wavelengthdivision multiplexing (WDM). ATM was later succeeded to multi-protocol label switching (MPLS). Second, we present generalized MPLS technologies (GMPLS). In GMPLS, the label concept of MPLS is extended to other labels used in TDM, WDM, and fiber networks. GMPLS enables network operators to serve networks deployed by different technologies with a common protocol suite of GMPLS. Third, we describe multi-layer traffic engineering and a path computation element (PCE). Multi-layer traffic engineering designs and controls networks considering resource usages of more than one layer. This leads to use network resources more efficiently than the single-layer traffic engineering adopted independently for each layer. PCE is defined as a network element that computes paths, which are used for traffic engineering. Then, we address software-defined networks, which put the designed network functions into the programmable data plane by way of the management plane. We describe the evaluation from GMPLS to software defined networking (SDN) and transport SDN. Fifth, we describe the advanced devices and switches for optical networks. Finally, we address advances in networking technologies and future directions on optical networking.

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Section: Silicon Photonic Switchmentioning

confidence: 99%

Optical Networking Paradigm: Past, Recent Trends and Future Directions

Oki

Wada

Okamoto

et al. 2017

IEICE Trans. Commun.

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“…However, FMS technologies have thus far suffered from either severely limited port count, lack of long-term reliability, or high cost. Recently, an extremely small footprint 32 Â 32 FMS has been realized by silicon photonics [36], which allows to compose a large scale switch fabrics at low cost. One possible future direction is to optimize a hybrid use of WSS and FMS for the necessary bandwidth scaling required in the post-Moore era.…”

Section: Using Wide-area Optical Technologies On Hpc Networkmentioning

confidence: 99%

Optical network technologies for HPC: computer-architects point of view

Koibuchi

Fujiwara

Ishii

et al. 2016

IEICE Electron. Express

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Optical network technologies, such as circuit switching, wavelength division multiplex and silicon photonics, have been considered for high-performance computing (HPC) systems to achieve low communication latency, high link bandwidth and low power consumption. However, conventional HPC systems still use packet networks with electric switches. Only active optical cables for inter-cabinet long links are borrowed from optical network technologies. This paper firstly reviews the gap between the conventional HPC networks and feasible optical network technologies. We explain our pessimism that this gap will continue to exist by the beginning of the post-Moore era, i.e. 2025-2030. It secondly illustrates our research vision that HPC networks will be able to adopt optical circuit switching, possibly using free-space optics in the post-Moore era.

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“…In Si PICs, phase control is a key function for the realization of various important devices such as optical switches, modulators, variable wavelength filters, and coherent receivers [1,2,3,4,5]. It would also be a practical solution for compensating the parasitic phase-shifts stemming from structural size errors in fabricated Si photonic devices [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…The integration of heaters on Si waveguides is one of the major phase control techniques owing to the relatively large thermo-optic (TO) effect of silicon [2,5].…”

Section: Introductionmentioning

confidence: 99%

Compact and low-loss liquid crystal loaded Mach-Zehnder optical switch based on Si wire waveguide

Atsumi

Miyazaki

Miura

et al. 2017

IEICE Electron. Express

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We demonstrate a compact and low-loss liquid crystal loaded Si wired Mach-Zehnder (MZ) optical switch in the in-plane switching mode. The device is configured with a simple structured MZ interferometer in which one side of phase-shifter-electrodes is placed on the MZ-island-like area. A device with a 100-µm-long phase shifter has small footprint of within 300 × 80 µm 2 and exhibits quite low device losses and relatively smooth spectra with a voltage-length product of ∼0.4 V·mm. The thermal characteristics of the device are also evaluated and the device is found to be operable until at least 60°C.

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Ultra-compact 32 × 32 strictly-non-blocking Si-wire optical switch with fan-out LGA interposer

Cited by 164 publications

References 7 publications

Optical Networking Paradigm: Past, Recent Trends and Future Directions

Optical Networking Paradigm: Past, Recent Trends and Future Directions

Optical network technologies for HPC: computer-architects point of view

Compact and low-loss liquid crystal loaded Mach-Zehnder optical switch based on Si wire waveguide

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