Results 11 to 20 of about 112,055 (258)

Shape sensing of optical fiber Bragg gratings based on deep learning

open access: yesMachine Learning: Science and Technology, 2023
Continuum robots in robot-assisted minimally invasive surgeries provide adequate access to target anatomies that are not directly reachable through small incisions.
Samaneh Manavi Roodsari   +6 more
doaj   +1 more source

A Large Mode Area Parabolic-Profile Core Fiber with Modified Segmented in Cladding

open access: yesPhotonics, 2022
In this paper, a novel fiber with a parabolic-profile core and eight segmented trenches in cladding is designed. The designed fiber consists of the segmented trench of low refractive index in cladding and parabolic-profile of high refractive index in the
Song Yang   +4 more
doaj   +1 more source

Highly Birefringent, Low Flattened Dispersion Photonic Crystal Fiber in the Terahertz Region

open access: yesIEEE Photonics Journal, 2021
High-performance photonic crystal fiber (PCF) has an important impact on the development of the full potential of complex terahertz systems. A new kind of PCF with D-shaped air holes in core region was proposed for terahertz (THz) region.
Biao Wang   +5 more
doaj   +1 more source

Wide-band Bending Insensitive Multimode Fiber

open access: yesGuangtongxin yanjiu, 2021
In order to further improve the multimode fiber transmission performance in the Ethernet, the paper proposes to improve the performance of wide-band bending insensitive multimode fiber considering the material composition and profile structure design. By
Yi-chun SHEN   +3 more
doaj   +1 more source

Theoretical Analysis of Temperature-corrected Single-mode Fiber Macro-bending Loss Characteristics

open access: yesGuangtongxin yanjiu, 2021
In order to study the relationship between the macro-bending loss characteristics of the single-mode fiber and the temperature change, the thermo-optical effect and thermal expansion effect are corrected according to the theoretical formula proposed by ...
SUN Yun-peng, SHU Chang, LIN Hai-tao
doaj   +3 more sources

Low-Cost Angle Sensor for Robotics Applications Using Plastic Optical Fiber Based on Optical Loss Mechanism

open access: yesBiomimetics, 2023
Robotic systems and the human body consist of numerous joint structures, all of which require precise angle adjustments. At present, encoder, strain gauge, and electrical resistance-based sensors are commonly used for angle measurement.
Hyun-Woo Lee, Dae-Hyun Kim, Sangwoo Shin
doaj   +1 more source

Resonant bend loss in leakage channel fibers [PDF]

open access: yesOptics Letters, 2012
Leakage channel fibers, designed to suppress higher-order modes, demonstrate resonant power loss at certain critical radii of curvature. Outside the resonance, the power recovers to the levels offset by the usual mechanism of bend-induced loss. Using C$^2$-imaging, we experimentally characterize this anomaly and identify the corresponding physical ...
Barankov, R. A.   +3 more
openaire   +3 more sources

Strain and Curvature Stability Enhanced SMF Introduction

open access: yesAdvanced Electromagnetics, 2017
In this paper, the strain insensitive single mode optical fiber with low nonlinear effects and ultra low bending loss (BL), appropriate for small curvature radius installation, is presented. The suggested design method is based on the reverse engineering
S. Makouei
doaj   +1 more source

The Interfacial Friction Loss of Prestressed Carbon-Fiber Tendons in a Bending State

open access: yesBuildings, 2022
Carbon-fiber reinforced plastic (CFRP) is ideal for bridge reinforcement due to its high strength, light weight, and corrosion resistance. Studies on the friction loss of CFRP tendons in a bending state form an important part of advancing the application
Jiaping Fu   +5 more
doaj   +1 more source

Low loss modified Bezier bend waveguide

open access: yesOptics Express, 2022
We proposed and experimentally demonstrated a low loss modified Bezier bend for silicon and silicon nitride photonic integrated circuits. Both simulation and experimental results confirm that the modified Bezier bend can effectively reduce the bend loss for silicon and silicon nitride platform.
Tianyu Sun, Mingjun Xia
openaire   +2 more sources

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