Results 91 to 100 of about 378,310 (219)

Etched Polymer Fibre Bragg Gratings

open access: yesPhotonics and Fiber Technology 2016 (ACOFT, BGPP, NP), 2016
Recently we initiated a new research direction for high-sensitivity and high-reflectivity Bragg grating fabrication based on etched polymer optical fibre, here we report the recent research developments on etched polymer fibre Bragg gratings.
Kishore Bhowmik   +4 more
openaire   +2 more sources

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

open access: yesAdvanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony   +3 more
wiley   +1 more source

The Key Technologies and Technological Evolution Mechanisms of Robotic Systems for Fracture Reduction Surgery

open access: yesAdvanced Intelligent Systems, EarlyView.
This review traces three decades of technological evolution in robot‐assisted fracture reduction systems, from early robotic concepts to clinically oriented platforms. Key advances in robotic architecture, navigation, path planning, interaction control, and surgical integration are summarized, while current translational challenges and future ...
Shaolong Kuang   +5 more
wiley   +1 more source

Bronchoscope Tip Localization With Learned Airway Constraints and an Open Source Simulator

open access: yesAdvanced Intelligent Systems, EarlyView.
BronchoLoc addresses feature‐poor bronchoscopic imaging by combining monocular video with a preoperative CT graph to estimate 3D camera location. A local tracker identifies candidate branches, while a sequence‐aware global module refines the trajectory. Demonstrating sub‐centimeter accuracy across synthetic and phantom datasets, this framework advances
Emanuele Nicotra   +7 more
wiley   +1 more source

Shape Sensing, Mapping, and Obstacle Avoidance of the Continuum Manipulator in Confined Environments

open access: yesAdvanced Intelligent Systems, EarlyView.
An integrated sensing framework combines capacitive sensors, IMU, and laser array sensor. The shape reconstruction is finished by backpropagation neural network. Accurate shape estimation (relative error of 1.04%) is maintained under a 110 g tip load, while a miniaturized VL6180X array enables local environmental reconstruction and reactive obstacle ...
Pengyuan Wang   +9 more
wiley   +1 more source

Investigation of code reconfigurable fibre Bragg gratings for Optical Code Division Multiple Access (OCDMA) and Optical Packet Switching (OPS) Networks

open access: yes, 2009
This thesis documents my work in the telecommunication system laboratory at the Optoelectronics Research Centre, towards the implementation of code reconfigurable OCDMA and all-optical packet switching nodes based on fibre Bragg grating (FBG) technology.
Tian, Chun
core   +1 more source

Magnetically programmable fibre Bragg gratings

open access: yesElectronics Letters, 1998
An attractive force between magnetic poles was utilised to produce significant wavelength shifts in fibre Bragg gratings. Programmable magnets were used to controllably strain and shift the wavelength of the grating by more than 15 nm. The wavelength tuning is fast and the device requires no power to maintain the shifted wavelengths.
S. Jin   +4 more
openaire   +1 more source

Ultrafast RF Spectrum Analyzer Assisted by Optical Short‐Time Fourier Transform

open access: yesAdvanced Physics Research, EarlyView.
We present Recent efforts in an ultrafast RF spectrum analyzer based on the short‐time Fourier transform (STFT) at over 10 MHz frame rate and over 40GHz bandwidth to improve performance and support applications. All these efforts could inspire more innovative applications of temporal imaging modalities in the future.
Liao Chen   +4 more
wiley   +1 more source

Simultaneous, independent measurement of temperature and strain using a tilted fibre Bragg grating [PDF]

open access: yes, 2007
A single fibre Bragg grating is used to discriminate between temperature and strain by exploiting the core-cladding mode coupling of a tilted fibre Bragg grating (TFBG).
Ralph P. Tatam   +5 more
core   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

open access: yesFlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan   +7 more
wiley   +1 more source

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