Results 11 to 20 of about 409,995 (301)

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

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

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 ...
Yun-peng SUN, Chang SHU, Hai-tao LIN
doaj   +3 more sources

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

Design and Characterization of Nanopore- Assisted Weakly-Coupled Few-Mode Fiber for Simpler MIMO Space Division Multiplexing

open access: yesIEEE Access, 2020
We report on a novel weakly-coupled 6-LP-mode fiber that features a nanopore-assisted step-index core with double-cladding profile. The purpose of this fiber design is to alleviate modes coupling and bend sensitivity, thus simplifies the multiple-input ...
Yuheng Xie   +6 more
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

Design of bent photonic crystal fiber supporting a single polarization [PDF]

open access: yes, 2011
In this work, it is shown that the differential loss between the TE- and TM-polarized fundamental modes in a highly birefringent photonic crystal fiber (PCF) can be enhanced by bending the fiber.
Heiblum   +8 more
core   +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

Consistency aspects of out-of-plane bending, torsion and shear in a quadratic curved beam element [PDF]

open access: yes, 1990
Curved beams in civil engineering applications call for out-of-plane bending and torsion under the action of13; out-of-plane transverse shear loads. The design of a quadratic displacement curved beam element capable of13; representing shear deformation ...
Naganarayana, BP, Prathap, Gangan
core   +1 more source

Home - About - Disclaimer - Privacy