Triangular-Shaped Coupled Microrings for Robust Wavelength Multi-/Demultiplexing in Si Photonics

Ito, Hiroyuki; Ishikura, Norihiro; Baba, Toshihiko

doi:10.1109/jlt.2014.2381771

Cited by 14 publications

(3 citation statements)

References 18 publications

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“…Thus, the spectral shape as well as transmission intensity can be degraded easily. The performance can also be degraded by small resonance mismatch between the rings [20].…”

Section: Designing and Mathematical Methodologymentioning

confidence: 99%

Performance study of optical resonator‐based filter architectures

Addya¹,

Dey²,

Mandal

2018

IET Circuits, Devices & Systems

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A comparative study on characteristics and performance of optical ring resonator architectures, i.e. circular, racetrack, and triangular-shaped optical resonators, have been carried out here. Constituent material used for designing these resonators is an silicon on insulator wafer consisting of thin silicon (Si) layer on silica (SiO 2) layer carried on a thick Si substrate having group index of 2.379. All the resonators are so designed that all provide equal free spectral range (FSR) of 25.2 THz. All these double-ring architectures have been analysed using delay line signal processing technique in z-domain and Mason's gain formula. FSR expansion has been achieved employing the Vernier principle. Various performance defining parameters have been also investigated.

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“…Thus, the spectral shape as well as transmission intensity can be degraded easily. The performance can also be degraded by small resonance mismatch between the rings [20].…”

Section: Designing and Mathematical Methodologymentioning

confidence: 99%

Performance study of optical resonator‐based filter architectures

Addya¹,

Dey²,

Mandal

2018

IET Circuits, Devices & Systems

View full text Add to dashboard Cite

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“…The details of the coupled triangular microring MUX are described in [13]. This is composed of a 400 nm wide Si wire waveguide embedded with SiO 2 cladding.…”

Section: Design and Fabricationmentioning

confidence: 99%

Wavelength-division multiplexing Si photonic crystal beam steering device for high-throughput parallel sensing

et al. 2018

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We proposed and demonstrated a wavelength-division multiplexing (WDM) optical beam-steering device consisting of a thermally controlled doubly periodic Si twodimensional bulk photonic crystal waveguide and coupled microring multiplexers. Beam forming and steering while maintaining a sharp profile is much easier in this device than with optical phased arrays which need the fine phase control. By dividing the range of beamsteering angles into different wavelength channels, it is possible to cover a wide range of angles, even when each angle is small. In this study, we fabricated a device with four wavelength channels, each of which showed beam steering of 4°-5° as a result of heating, resulting in a total of 16°. Two-dimensional steering is also achieved by loading a collimator lens and selecting one waveguide from those arrayed. We evaluated 112 resolution points with four wavelengths and 448 points in total by switching four waveguides. If this WDM concept is introduced into light detection and ranging and the number of wavelengths is increased, it will be possible to increase the sensing throughput, which is usually constrained by the round-trip time of light, by simultaneous parallel operation.

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“…There are many works based on series microring resonators to achieve performance including large free-spectral-range (FSR), high extinction ratio (ER) and wide bandwidth [5][6][7][8] . However, due to the instability of the process, the error of the process has a great influence on the spectra of the high-order filter.…”

Section: Introductionmentioning

confidence: 99%

Thermally tunable high-order microring filters with large free-spectral-range

Gu,

Wang,

Chen

et al. 2023

AOPC 2023: AI in Optics and Photonics

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Triangular-Shaped Coupled Microrings for Robust Wavelength Multi-/Demultiplexing in Si Photonics

Cited by 14 publications

References 18 publications

Performance study of optical resonator‐based filter architectures

Performance study of optical resonator‐based filter architectures

Wavelength-division multiplexing Si photonic crystal beam steering device for high-throughput parallel sensing

Thermally tunable high-order microring filters with large free-spectral-range

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