Results 101 to 110 of about 14,873 (307)

Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]

, 2006
Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Flockhart, G M H, Cranch, G A, Kirkendall, C K   +2 more
core   +1 more source

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

Multiplexing of fiber-optic long-period grating-based interferometric sensors [PDF]

, 2007
Two long-period gratings (LPGs) fabricated in series in an optical fiber form a Mach-Zehnder interferometer, producing a sinusoidal channelled spectrum within the characteristic LPG attenuation bands, which has the appearance of an interference fringe ...
Tatam, Ralph P., James, Stephen W., Murphy, Richard P.   +2 more
core   +1 more source

Reflectivity and Bandwidth Modulation of Fiber Bragg Gratings in a Suspended Core Fiber by Tunable Acoustic Waves

IEEE Photonics Journal, 2014
The acousto-optic modulation of fiber Bragg gratings in a four-hole suspended core fiber is experimentally demonstrated. Strong modulations with a reflectivity amplitude decrease by up to 67% and a 57% bandwidth increase in the Bragg resonance are ...
Ricardo E. Silva, Martin Becker, Alexander Hartung, Manfred Rothhardt, Alexandre A. P. Pohl, Hartmut Bartelt   +5 more
doaj   +1 more source

Sensitivity Analysis of Sidelobes of the Lowest Order Cladding Mode of Long Period Fiber Gratings at Turn Around Point. [PDF]

Sensors (Basel), 2022
Dey TK, Tombelli S, Roy A, Biswas P, Giannetti A, Basumallick N, Baldini F, Bandyopadhyay S, Trono C.   +8 more
europepmc   +1 more source

Thermal regeneration of fiber Bragg gratings in photosensitive fibers

Optics Express, 2009
We report about a thermal regeneration of fiber Bragg gratings written in photosensitive fibers with nanosecond laser pulses. We observe a regenerative process in a highly photosensitive fiber without hydrogen loading which indicates a secondary grating growth in an optical fiber by thermal activation.
Eric, Lindner, Christoph, Chojetzki, Sven, Brückner, Martin, Becker, Manfred, Rothhardt, Hartmut, Bartelt   +5 more
openaire   +2 more sources

Breaking the Bottleneck in Limit of Detection of Surface Refractive Index Sensing by Harnessing Meta‐Waveguide Microring Resonators

Advanced Science, EarlyView.
Mode splitting in meta‐waveguide microring resonators (MWMRs) effectively suppresses baseline drift and measurement noise while maintaining high refractive‐index sensitivity. This reflection‐induced mode splitting strategy enables quantitative detection of ultra‐weak surface perturbations and establishes MWMRs as a robust, drift‐immune platform for ...
Wanxin Li, Jiewen Li, Rui Li, Gina Jinna Chen, Perry Ping Shum, Yi Zou, Ray T. Chen, Yongkang Dong, Xiaochuan Xu   +8 more
wiley   +1 more source

Optimized Dual-Stokes Raman Laser for 1.1 µm Emission and Temperature Sensing

Photonics
This work experimentally validates an improved Raman fiber laser, developed through cascade core variation splicing of optical fibers and the integration of fiber Bragg gratings.
Jesus Alberto Coba-Ramos, Lelio de la Cruz May, Angeles Yolanda Pages-Pacheco, Efrain Mejia-Beltran, Daniel Jauregui-Vazquez, Manuel May-Alarcon, Rafael Sanchez-Lara, Jose Alfredo Alvarez Chavez   +7 more
doaj   +1 more source

Organoid Brain‐Machine‐Interface Devices for Central Nervous System Repair

Advanced Science, EarlyView.
We envision organoid brain‐machine‐interface (Organoid‐BMI) devices as new biohybrid bidirectional communication pathways to connect the human CNS and the external world for personalized CNS repair and regeneration. ABSTRACT Central nervous system (CNS) repair and regeneration suffer from tremendous clinical challenges due to current limitations in ...
Yantao Xing, Yang Yang, Zichen Hong, Chunhui Tian, Huiyu Chu, Susanne Clara Prokop, Hongwei Cai, Mingxia Gu, Jason Tchieu, Ken Mackie, Feng Guo   +10 more
wiley   +1 more source

Advanced fibre Bragg gratings: application to dispersion compensation

, 1999
This thesis presents the design and fabrication issues related to advanced fibre Bragg gratings with particular emphasis on realising novel devices with application to dispersion compensation.
Durkin, Michael Kevan
core