Silicon Photonic Broadband Suspended Directional Coupler

Sattari, Hamed; Takabayashi, Alain Yuji; Quack, Niels

doi:10.1109/omn.2019.8925298

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…We here present an implementation of a compact wideband directional coupler for MEMS-enabled integrated components [28]. A representative schematic (not to scale) of the component with the related dimensions is presented in Fig.…”

Section: Suspended Directional Couplermentioning

confidence: 99%

MEMS-Enabled Silicon Photonic Integrated Devices and Circuits

Quack

Sattari

Takabayashi

et al. 2020

IEEE J. Quantum Electron.

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Photonic integrated circuits have seen a dramatic increase in complexity over the past decades. This development has been spurred by recent applications in datacenter communications and enabled by the availability of standardized mature technology platforms. Mechanical movement of wave-guiding structures at the micro-and nanoscale provides unique opportunities to further enhance functionality and to reduce power consumption in photonic integrated circuits. We here demonstrate integration of MEMS-enabled components in a simplified silicon photonics process based on IMEC's Standard iSiPP50G Silicon Photonics Platform and a custom release process.

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Section: Suspended Directional Couplermentioning

confidence: 99%

MEMS-Enabled Silicon Photonic Integrated Devices and Circuits

Quack

Sattari

Takabayashi

et al. 2020

IEEE J. Quantum Electron.

Self Cite

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“…This leads to a varying amplitude of the coupling power with the operating wavelength, resulting in strong wavelength dependence, which is unfavorable for signal power tapping and monitoring applications. In the past two decades, researchers have made significant efforts in developing broadband DCs [12][13][14][15]. Adiabatic directional couplers [12] have demonstrated promising broadband operation, using tapered waveguides for achieving adiabatic transitions; however, they have the disadvantage of large footprints.…”

Section: Introductionmentioning

confidence: 99%

Broadband and Low-Loss Silicon Photonic Directional Coupler for Signal Power Tapping on the 3 μm SOI Waveguide Platform

Liu

et al. 2023

Photonics

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Silicon photonics (SiPh) has emerged as a promising technology for photonic integrated circuits (PICs). One of the basic components in SiPh is the directional coupler (DC), which plays an important role in signal monitoring with the requirement of low wavelength dependence and low loss. This paper proposes a broadband and low-loss DC designed for signal power tapping on the 3 μm silicon-on-insulator (SOI) waveguide platform. By utilizing the advantages of multi-micron waveguides and replacing one of the straight waveguides with an optimized arc-shaped waveguide in the coupling region, the proposed DC enhances spectral stability and improves transmission with negligible loss. Experimental evidence indicates that the proposed DC showcases a minimal variation in the tapping ratio. From 1470 nm to 1630 nm, the largest deviation away from the tapping ratio at 1550 nm is 1.433%. Additionally, the device exhibits a low excess loss of −0.27 dB. These results suggest that the proposed device is well-suited to reliable signal power tapping and monitoring, particularly within PICs.

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“…Different silicon photonic MEMS structures in MORPHIC. (a) Tunable optical phase shifter using an inplane comb-drive actuator, (b) 1 × 2 switch using a single waveguide tip that can be coupled to two output tips, (c) a suspended directional coupler with broadband wavelength transmission,35,36 (d) vertically actuated 1 × 2 switch with tolerant directional couplers.…”

mentioning

confidence: 99%