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Your search keyword '"single mode fiber (SMF)"' showing total 2 results
Start Over Descriptor "single mode fiber (SMF)" Publication Year Range Last 3 years
2 results on '"single mode fiber (SMF)"'

1. High sensitivity optical fiber temperature sensor based upon a polydimethylsiloxane filled Fabry-Perot interferometer.

Author

Yang, Runtao, Tian, Jingjun, Chen, Zhipeng, Yang, Xianchao, Hou, Chunhua, and Meng, Yizhen

Subjects
*FIBER optical sensors, *FABRY-Perot interferometers, *OPTICAL fiber detectors, *PLASTIC optical fibers, *TEMPERATURE sensors, *POLYDIMETHYLSILOXANE, *HOLLOW fibers, *OPTICAL fibers
Abstract

AbstractA high-sensitivity temperature sensor based upon an optical fiber Fabry-Perot interferometer (FPI) filled with polydimethylsiloxane (PDMS) is reported that employed a single mode fiber (SMF) and a hollow core fiber (HCF) to enhance the sensitivity. The sensing characteristics were investigated from 20 °C to 40 °C. The experimental results demonstrate that the sensor is sensitive to temperature due to the high thermal optical coefficient (TOC) and high thermal expansion coefficient (TEC) of PDMS, achieving a high sensitivity of 2.155 nm/°C. The designed sensor shows great potential for high-precision temperature sensing applications due to its high sensitivity, compact structure, and simple preparation. [ABSTRACT FROM AUTHOR]

Published
2024
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2. Efficient coupling between single mode fibers and glass chip waveguides via graded refractive index fiber tips

Author

Yongsop Hwang, Nicholas Phillips, Dale E. Otten, Nicolas Riesen, David G. Lancaster, Hwang, Yongsop, Phillips, Nicholas, Otten, Dale E, Riesen, Nicolas, and Lancaster, David G

Subjects
coupling lenses, single mode fiber (SMF), Atomic and Molecular Physics, and Optics, optics
Abstract

Coupling characteristics between a single mode fiber (SMF) and a waveguide embedded in a glass chip via a graded index fiber (GIF) tip are investigated at a wavelength of 976 nm. The GIF tips comprise a coreless fiber section and a GIF section. A depressed cladding waveguide in a ZBLAN glass chip with a core diameter of 35 μm is coupled with GIF tips that have a range of coreless fiber and GIF lengths. An experimental coupling efficiency as high as 88% is obtained while a numerical simulation predicts 92.9% for the same GIF tip configuration. Since it is measured in the presence of Fresnel reflection, it can be further improved by anti-reflection coating. Additionally, it is demonstrated that a gap can be introduced between the chip waveguide and the GIF tip while maintaining the high coupling efficiency, thus allowing a thin planar optical component to be inserted. The results presented here will enable miniaturization and simplification of photonic chips with integrated waveguides by replacing bulk coupling lenses with integrated optical fibers.

Published
2022

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