Investigation of an In-Line Slot Waveguide Sensor Built in a Tapered D-Shaped Silicon-Cored Fiber

Lin, K.Y.; Wang, Lon A.

doi:10.3390/s21237832

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…Because our goal is to increase coupling efficiency and reduce polarization dependence simultaneously, we decide that the best choice is when the polishing position is right on the border of the core. Furthermore, in our previous works, side polishing has been used to fabricate the Schottky photodetector and to design the slot waveguide sensor [10][11][12]. In both applications, we have proved that the strong light field confinement of SCF can be extended to the D-shaped regions while maintaining the single-mode operation.…”

Section: Structure Design and Simulationmentioning

confidence: 93%

Design of a Polarization-Insensitive and High-Efficiency Coplanar Edge Coupler for Silicon Photonics by Using a Polished Conical Silicon-Cored-Fiber

Yang,

Wu,

Wang

2024

IEEE Photonics J.

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Optical coupling between an external optical fiber and a silicon waveguide is vital for successful silicon photonics applications. Direct edge coupling has been desirable but challenging in the past to substitute for bulky, non-coplanar grating-assisted coupling. A silicon-cored fiber (SCF) is proposed as a novel solution for coplanar light coupling from an incoming fiber to a silicon waveguide. The simulation results show that an optimized polished conical SCF coupler can reach very high coupling efficiencies in both TE and TM modes and with low polarization dependence.

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Section: Structure Design and Simulationmentioning

confidence: 93%

Design of a Polarization-Insensitive and High-Efficiency Coplanar Edge Coupler for Silicon Photonics by Using a Polished Conical Silicon-Cored-Fiber

Yang,

Wu,

Wang

2024

IEEE Photonics J.

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“…In reality, the connection between SCF and fused silica-based fiber was an important issue that needed to be overcome. Wang et al [15] proposed that the SCF could be connected to fused silica-based fiber devices via a mid-IR single-mode fiber (SMF) to a tapered SCF. In addition, there were other techniques for avoiding exciting higher-order modes when coupling a Gaussian beam to a different type of fiber, such as offset launch technique [16] and mode field-matched center launching [17].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Silicon Core-Based Fiber Bragg Grating for Simultaneous Detection of Temperature and Refractive Index

Hong

Chen

et al. 2023

Sensors

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In this article, we theoretically designed and simulated a silicon core fiber for the simultaneous detection of temperature and refractive index. We first discussed the parameters of the silicon core fiber for near single-mode operation. Second, we designed and simulated a silicon core-based fiber Bragg grating and applied it for simultaneous sensing of temperature and environmental refractive index. The sensitivities for the temperature and refractive index were 80.5 pm/°C and 208.76 dB/RIU, respectively, within a temperature range of 0 to 50 °C and a refractive index range of 1.0 to 1.4. The proposed fiber sensor head can provide a method with simple structure and high sensitivity for various sensing targets.

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Design of a high-efficiency tapered silicon-cored-fiber coupler for fiber-to-chip coplanar edge coupling

Yang¹,

Wu²,

Wang³

2023

Opt. Continuum

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A silicon-cored-fiber (SCF) is used in, what we believe to be, a novel way for coplanar light coupling from an incoming fiber to a silicon waveguide on a chip. Two schemes of utilizing SCFs are investigated, namely a tapered SCF coupler and a D-shaped SCF coupler. A tapered SCF coupler is chosen for further optimization, leading to a coupling efficiency of ∼97% obtained from the results of 3D FDTD simulation.

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Investigation of an In-Line Slot Waveguide Sensor Built in a Tapered D-Shaped Silicon-Cored Fiber

Cited by 3 publications

References 25 publications

Design of a Polarization-Insensitive and High-Efficiency Coplanar Edge Coupler for Silicon Photonics by Using a Polished Conical Silicon-Cored-Fiber

Design of a Polarization-Insensitive and High-Efficiency Coplanar Edge Coupler for Silicon Photonics by Using a Polished Conical Silicon-Cored-Fiber

Investigation of Silicon Core-Based Fiber Bragg Grating for Simultaneous Detection of Temperature and Refractive Index

Design of a high-efficiency tapered silicon-cored-fiber coupler for fiber-to-chip coplanar edge coupling

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