19-core 1×8 Core Selective Switch for Spatial Cross-Connect

Kuno, Yoshinori; Kawasugi, Masahiro; Hotta, Yuji; Otowa, Ryohei; Mizoguchi, Masahiro; Takahashi, Fumihiro; Sakurai, Yasuki; Jinno, Masahiko

doi:10.23919/oecc/psc53152.2022.9849870

Cited by 8 publications

(5 citation statements)

References 6 publications

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“…It should be noted that further increase in the number of cores is expected by using both schemes together. with the same core number in output 19-CF ports confirmed that the 19-CF CSS has a low insertion loss of less than 4.0 dB over a wide wavelength range of 1500 nm to 1600 nm [9].…”

Section: Css Prototype Using 19-cfsmentioning

confidence: 58%

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Enabling technologies for flexible and scalable spatial cross-connects

Jinno

2023

Next-Generation Optical Communication: Components, Sub-Systems, and Systems XII

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Hierarchical spatial bypassing and spectral grooming in recently proposed spatial channel network (SCN) architectures are beneficial in the space division multiplexing era in terms of reducing the total node cost while maintaining a reasonably high spectral efficiency and optical-reach extension for optical signals that spatially bypass the overlying wavelength division multiplexing layer. One key piece of equipment to achieve SCNs is a spatial cross-connect (SXC). In this paper, enabling technologies for flexible and scalable SXCs including a core selective switch, a multicore fiber splitter, a core selector, and a core/port selector are reported.

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Section: Css Prototype Using 19-cfsmentioning

confidence: 58%

“…A more straightforward way to increase the core count in a CSS is to employ a high core count MCF, for example, a 19core fiber (19-CF) [9]. It should be noted that further increase in the number of cores is expected by using both schemes together.…”

Section: Css Prototype Using 19-cfsmentioning

confidence: 99%

Enabling technologies for flexible and scalable spatial cross-connects

Jinno

2023

Next-Generation Optical Communication: Components, Sub-Systems, and Systems XII

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“…Switch Supporting 15 Cores per Port Using Bundle of Three 5-Core Fibers as well. A straightforward way to increase the core count in a CSS is to employ a high core count MCF, for example, a 19core fiber [26]. Another way is to use several MCFs as a bundle and collimate/demultiplex beams emitted from it all at once using a single microlens [25].…”

Section: Design and Performance Of 1×8 Core Selectivementioning

confidence: 99%

“…As a key building block for a port modular SXC, a novel spatial optical switch referred to as a core selective switch (CSS) was recently proposed [21][22][23][24][25][26]. A CSS is a one-input MCF and N-output MCF device where an optical signal launched into any core in the input MCF can be switched to a core that has the same core identifier of any output MCF.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance of 1×8 Core Selective Switch Supporting 15 Cores Per Port Using Bundle of Three 5-Core Fibers

Uchida

Urashima

Ishikawa

et al. 2023

J. Lightwave Technol.

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A core-selective switch (CSS) is a key building block for a port modular spatial cross-connect where an optical signal launched into any core in the input multi-core fiber (MCF) can be switched to a core that has the same core identifier of any output MCF. One way to increase the core count in a CSS is to use several MCFs as a bundle and collimate/demultiplex beams emitted from it all at once using a single microlens. In this paper, we report a 1×8 CSS prototype based on a bundle of three 5-core fibers (5-CFs), which supports 15 cores per port, demonstrating the feasibility of a high core count CSS through MCF bundling. The CSS prototype exhibits insertion loss of less than 4.8 dB, and polarization dependent loss of less than 0.5 dB over an ultrawide wavelength range of 1480 nm to 1630 nm. The inter-core crosstalk (XT) characteristics as a function of the wavelength are thoroughly investigated. We show that the intra 5-CF XT imparted to the center core from the other four outer cores in the same 5-CF is less than -52 dB and the inter 5-CF XT from cores in the other 5-CFs in the same bundle is less than -64 dB, which are sufficiently low values for practical networks. No OSNR penalty in the 100-Gb/s spatial channel was observed when ten 100-Gb/s DP-QPSK WDM signals in the C-band were simultaneously routed by the bundled 5-CF 1×8 CSS prototype.

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“…Figure 2 shows an example of SXC architecture following that idea. To realize it, we have developed a Core Selective Switch (CSS) [5], CSS with a variable attenuator [6], Core Selector (CS), and tap monitor.…”

Section: Introductionmentioning

confidence: 99%

Multi-core fiber switch technology for SDM network

Kuno,

Kawasugi,

Hotta

et al. 2024

Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII

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Space division multiplexing architecture based on multi-core fiber (MCF) is a promising solution for rapid traffic growth beyond 5G. We proposed and demonstrated a compact, high-performance, and economical 1×8 core selective switch with a 19-core MCF. A tilt-mirror-type 2D-MEMS array was deployed owing to its low optical loss, broad bandwidth, and scalability. The measured insertion loss of the fabricated device was from 0.8 to 4.0 dB. We also demonstrated a core selector and tap monitor for building a high-performance MCF-based ROADM configuration.

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19-core 1×8 Core Selective Switch for Spatial Cross-Connect

Cited by 8 publications

References 6 publications

Enabling technologies for flexible and scalable spatial cross-connects

Enabling technologies for flexible and scalable spatial cross-connects

Design and Performance of 1×8 Core Selective Switch Supporting 15 Cores Per Port Using Bundle of Three 5-Core Fibers

Multi-core fiber switch technology for SDM network

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