An Ultra-Compact 4 × 4 and 8 × 8 Optical Switch Based on Dual-Microring Resonators

Guo, Xiaoqing; Dai, Tingge; Chen, Bei; Wang, Yuehai; Yu, Hui; Yang, Jianyi

doi:10.1109/lpt.2020.3025556

Cited by 9 publications

(7 citation statements)

References 22 publications

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“…Fabric of the strictly nonblocking 4 × 4 optical switch array based on dual MRRs and the Butterfly topology. (re‐drawn from [ 74 ] ).…”

Section: Silicon‐integrated Optical Switchesmentioning

confidence: 99%

“…Using dual MRRs, Guo et al. [ 74 ] further demonstrated a strictly non‐blocking 4 × 4 optical switch array based on the Butterfly structure in 2020. The Butterfly structure can bring the benefits of using fewer switch elements and achieving balanced performance of loss and crosstalk.…”

Section: Silicon‐integrated Optical Switchesmentioning

confidence: 99%

“…[80] Due to the advantages of high-quality factor (Q-factor), relatively small size, low power consumption, and wavelength selectivity, the MRR structure has been widely used in the design of silicon-integrated optical switches. [74,81,82] In the past a few years, with the maturity of MRR devices, relatively large-scale silicon-integrated optical switches based on MRRs have become a research focus, and in this review, we focus on these recent studies.…”

Section: Silicon-integrated Optical Switches Based On Mrrmentioning

confidence: 99%

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A Review of Silicon‐Based Integrated Optical Switches

Chen

Lin

Wang

2023

Laser & Photonics Reviews

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Recently, silicon‐integrated optical circuits have attracted intensive interests, thanks to the compatibility with the complementary metal‐oxide‐semiconductor (CMOS) technology that enables mass production at low cost. The optical switch is an essential part of optical integrated circuits, with broad applications in optical communications and networks, optical computing, and sensing such as LiDAR. In general, the silicon‐integrated optical switch adopts thermo‐optic or carrier dispersion effect to realize reconfigurable signal routing. However, the use of thermo‐optic effect leads to high power consumption, and the carrier dispersion effect has the disadvantage of small refractive index change. In addition, both effects are non‐latching, and hence, continuous power consumption is required even when switching is not needed. For overcoming these drawbacks, phase‐change materials (PCMs) have been introduced into silicon‐integrated optical switches. In this paper, silicon‐integrated optical switches are classified according to the underlying structure and recent research is reviewed. Recent studies on silicon‐integrated optical switches incorporating PCMs are also reviewed. Furthermore, the pros and cons of different types of integrated optical switches with and without PCMs are compared and discussed.

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“…Fabric of the strictly nonblocking 4 × 4 optical switch array based on dual MRRs and the Butterfly topology. (re‐drawn from [ 74 ] ).…”

Section: Silicon‐integrated Optical Switchesmentioning

confidence: 99%

Section: Silicon‐integrated Optical Switchesmentioning

confidence: 99%

Section: Silicon-integrated Optical Switches Based On Mrrmentioning

confidence: 99%

See 1 more Smart Citation

A Review of Silicon‐Based Integrated Optical Switches

Chen

Lin

Wang

2023

Laser & Photonics Reviews

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“…RIVEN by the demand of new-generation communication and large-scale computing, such as big data, cloud computing, the Internet of Things, artificial intelligence and so on, the silicon photonics has become an attractive and promising solution due to its advantages of small size, low cost and high integration. Basic silicon waveguide components have applications in sensors [1], [2], filters [3], [4], optical switches/modulators [5]- [7], [8], delayer [9], [10], polarization/wavelength/mode (de)multiplexer [11]- [13], and so on. Though have been well investigated, silicon photonics still deserves further study to explore its potentials and applications in broader fields.…”

Section: > Replace This Line With Your Manuscript Id Number (Double-c...mentioning

confidence: 99%

Mutual-Coupling in High-Q Silicon Dual-Concentric Micro-Ring/Racetrack Resonator

Liu

et al. 2022

IEEE Photonics J.

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Micro-ring resonator (MRR) is a key element in integrated optics. The mutual-coupling in dual-concentric MRR has great influence on the resonance output. In this work, high-Q silicon dual-concentric MRR and racetrack resonator have been investigated by the coupled mode theory. The theoretical model is built to explain and alleviate the phenomenon of resonance splitting. CMOS fabrication is adopted for the preparation of dualconcentric MRR and racetrack resonators. The highest Q-factors of dual-concentric MRR and racetrack resonator are measured to be ~9.00×10 4 at 1530.783 nm and ~7.32×10 4 at 1536.596 nm, respectively. The notch depth improvement over 20 dB has been demonstrated on the 5-μm-radius double-ring structure. The experimental results prove that the asymmetry of resonance splitting can be tuned by adjusting the distance between the innerring and outer-ring, as well as the waveguide width. The proposed work has potentials in the design and optimization of dualconcentric ring resonators.

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“…Among the polymer devices, they are mainly based on straight waveguides or Mach-Zehnder interferometers (MZIs) structure. As a general structure, microring resonators (MRRs) with the key merits of compact size, low power consumption, and wavelength selective function are attractive for high density integration on one chip used for optical interconnects [32], [33], sensing [34], [35] as well as nonlinear applications [36], [37]…”

Section: Introductionmentioning

confidence: 99%

Low Power Consumption Polymer/Silica Hybrid Thermo-Optic Switch Based on Racetrack Resonator

Yin

Yao

et al. 2022

IEEE Photonics J.

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Large scale integration of photonics devices requires low power consumption devices. In this paper, we demonstrate a low power consumption polymer/silica hybrid thermo-optic switch based on racetrack resonator. With the high index-contrast between SU-8 core, silica buffer and PMMA cladding, a compact racetrack resonator with a small bending radius of 120 µm and a coupling length of 1765 µm is fabricated through simple and lowcost contact lithography technology. An extinction ratio of 16.83 dB is achieved while the power consumption applied is 14.69 mW. The energy efficiency of the switch is 12.07 pm/mW. The rise/fall time the switch is 174 µs/182 µs.

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An Ultra-Compact 4 × 4 and 8 × 8 Optical Switch Based on Dual-Microring Resonators

Cited by 9 publications

References 22 publications

A Review of Silicon‐Based Integrated Optical Switches

A Review of Silicon‐Based Integrated Optical Switches

Mutual-Coupling in High-Q Silicon Dual-Concentric Micro-Ring/Racetrack Resonator

Low Power Consumption Polymer/Silica Hybrid Thermo-Optic Switch Based on Racetrack Resonator

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