Electrical trimming of the resonance of a silicon micro-ring resonator

Knights, Andrew P.; Wang, Z.; Paez, D. J.; Dow, Liam

doi:10.1109/group4.2017.8082180

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…These comprise local oxidation of the waveguide [18], optically induced modification of the refractive index of a thin chalcogenide film surrounding the waveguide by means of UV radiation [19], thermally induced refractive index change in the cladding [20], or thermally/current induced dopant diffusion [21]. While the method shown in [20] does not yet feature long term stability and the method shown in [21] was self-limiting and did not yet yield large phase shifts, they are interesting in that they target standard silicon photonics process flows without further modifications. The method shown in [18] in particular can be expected to feature long term stability.…”

Section: Passive Biasing Of Mzms By Means Of Multimode Couplersmentioning

confidence: 99%

Broadband, temperature tolerant and passively biased resonantly enhanced Mach-Zehnder modulators

Romero-García

Moscoso-Mártir

Nojić

et al. 2018

2018 IEEE 13th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)

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We describe a resonantly enhanced Mach-Zehnder modulator (MZM) that can be operated over a wide temperature range of 55 o C without being actively biased, while providing a significant resonant enhancement of 6.8 at the nominal wavelength / temperature compared to a linear MZM driven with a distributed driver. More importantly, it enables a ~20X improvement in power consumption compared to a 50 W matched linear travelling wave modulator with comparable phase shifter technology, drive voltage and output optical modulation amplitude. Passive biasing of the Mach-Zehnder interferometer is further implemented by replacing a splitter element in the MZM with a novel device combining splitting and fiber coupling functionalities in a single, multi-modal structure, that converts permanent fiber placement into a phase correction. Both concepts are combined in a single modulator device, removing the need for any type of active control in a wide temperature operation range.

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Section: Passive Biasing Of Mzms By Means Of Multimode Couplersmentioning

confidence: 99%

Broadband, temperature tolerant and passively biased resonantly enhanced Mach-Zehnder modulators

Romero-García

Moscoso-Mártir

Nojić

et al. 2018

2018 IEEE 13th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)

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“…Nonvolatile reconfigurable optics, on the other hand, have received considerable attention in recent years. − A large span of applications such as the passive biasing of Mach–Zehnder modulators and low power optical switches, as well as more future-looking applications, such as optical nonvolatile multilevel memories and adaptive neural networks, illustrate the relevance of photonic integrated circuit reconfigurability. Approaches for the latter in particular have included remanently changing the optical properties of ring resonators with phase change materials.…”

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confidence: 99%

Reconfigurable Frequency-Selective Resonance Splitting in Chalcogenide Microring Resonators

et al. 2020

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This paper reports a method to enable, for the first time, reconfigurable control of resonance splitting of one or multiple arbitrarily selected azimuthal orders in a microring resonator. This is accomplished by inscribing Bragg gratings in photosensitive Ge23Sb7S70 chalcogenide microring resonators via a novel cavity-enhanced photoinscription process, in which injection of light at the targeted C-band resonance frequency induces a spatially varying refractive index change. The so-formed Bragg grating precisely matches the selected resonance order without introducing optical losses. Long-term room temperature stability of the photoinscribed Bragg gratings has been verified in darkness and during operation with reduced optical power levels. The Bragg gratings can be reconfigured by first erasure with flood illumination of visible light at 561 nm and subsequent reinscription. We also report controlled splitting of multiple resonances by inscribing superimposed Bragg gratings.

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Design and fabrication of ring resonator spectral response through-drop wavelengths selective

Liou

Wang

2019

Opt Quant Electron

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Electrical trimming of the resonance of a silicon micro-ring resonator

Cited by 7 publications

References 4 publications

Broadband, temperature tolerant and passively biased resonantly enhanced Mach-Zehnder modulators

Broadband, temperature tolerant and passively biased resonantly enhanced Mach-Zehnder modulators

Reconfigurable Frequency-Selective Resonance Splitting in Chalcogenide Microring Resonators

Design and fabrication of ring resonator spectral response through-drop wavelengths selective

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