Results 251 to 260 of about 20,938 (278)

Dipole effect in long-period fiber grating

Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, 2001
An effect of dipole by the UV-induced birefringence was analyzed using a long-period fiber grating. It was approximately 5.6% in UV-induced refractive index change due to the photosensitivity of Ge-related glass defects in our experiment.
M. Shigehara, S. Ishikawa, M. Harumoto, H. Suganuma   +3 more
openaire   +1 more source

Asymmetric microhole-structured long-period fiber gratings

Sensors and Actuators B: Chemical, 2011
Abstract Asymmetric microhole-structured long period fiber grating fabricated in single mode, fiber and photonics crystal fiber by use of femtosecond laser pulse drilling is, presented. The periodically structured microholes positioned a few microns away, from the central fiber axis can effectively couple the fundamental core mode into the, forward ...
Ying Wang, D.N. Wang, Minwei Yang, C.R. Liao   +3 more
openaire   +1 more source

Novel tunable long-period fiber grating filters

SPIE Proceedings, 2004
A novel method to mechanically induce a long-period fiber grating (LPFG) by a grooved plate is reported. The transmission spectra of this kind of grating under different pressures and some special LPFG’s are experimentally investigated. This method is simple and reconfigurable and offers large spectra tunability.
Kai Chen, Chunfeng Ge, Qiuqin Sheng, Xiaoyi Dong, Jun Han   +4 more
openaire   +1 more source

Hermetic sealing of long period fiber gratings

Proceedings of SPIE, 2006
A method of writing long period grating and a model to explain light coupling between fundamental mode and cladding mode are presented. One athermal hermetic sealing approach is proposed to form hermetic sealing long period fiber grating. A long period fiber grating was designed and written for this experiment.
Chengxin Yang, Baoping Guo, Jin-Hua Kim
openaire   +1 more source

Bend-insensitive long-period fiber grating sensors

Optics and Lasers in Engineering, 2004
Abstract A novel bend-insensitive long-period fiber grating (LPFG) sensor written using focused CO 2 laser pulses is demonstrated, for the first time, to our knowledge. It is found that the central wavelength shift of such a LPFG is only −0.018 nm even for a curvature of 1.1 m −1 at the most bend-insensitive position of the LPFG.
Y.P Wang, Y.J Rao, Z.L Ran, T Zhu, X.K Zeng   +4 more
openaire   +1 more source

Long-period fiber gratings in WDM applications

Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, 2001
In this presentation we will discuss the properties of long-period gratings and aspects of their fabrication. We will also review devices based on long-period gratings including gain flatteners for fiber amplifiers.
openaire   +1 more source

Functional Fiber Materials to Smart Fiber Devices

Chemical Reviews, 2023

exaly  

Fecal microbial transplantation and fiber supplementation in patients with severe obesity and metabolic syndrome: a randomized double-blind, placebo-controlled phase 2 trial

Nature Medicine, 2021
Valentin Mocanu, Zhengxiao Zhang, Edward C Deehan   +2 more
exaly  

Fiber/Fabric‐Based Piezoelectric and Triboelectric Nanogenerators for Flexible/Stretchable and Wearable Electronics and Artificial Intelligence

Advanced Materials, 2020
Kai Dong, Xiao Peng, Zhong Lin Wang
exaly  

Microhole-structured long period fiber grating

Advanced Photonics & Renewable Energy, 2010
D. N. Wang, Ying Wang, Minwei Yang
openaire   +1 more source