Results 271 to 280 of about 40,614 (314)

Random period arc-induced long-period fiber gratings

Optics & Laser Technology, 2012
Abstract We report the fabrication of arc-induced long-period fiber gratings with strong random variations in the period. Long-period fiber gratings with standard deviations in the period from 8.50 to 36.98 μm were fabricated. The spectral position of the resonant bands is determined by the average period value, being similar to that observed in a ...
A. Martinez-Rios, I. Torres-Gomez, D. Monzon-Hernandez, G. Salceda-Delgado, V.M. Duran-Ramirez, G. Anzueto-Sanchez   +5 more
openaire   +1 more source

Progress in long period fiber gratings

Conference Proceedings. LEOS'98. 11th Annual Meeting. IEEE Lasers and Electro-Optics Society 1998 Annual Meeting (Cat. No.98CH36243), 2002
Summary form only given. Long period fiber gratings have been used in a variety of applications such as gain equalization filters for optical amplifiers, band rejection filters and sensors for temperature and strain. Among these applications, gain equalization is the most demanding and interesting because of the impact of broadband gain-flattened EDFA ...
openaire   +1 more source

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

Long-period fiber gratings as band-rejection filters

, 1995
A. Vengsarkar, P. Lemaire, J. Judkins, V. Bhatia, T. Erdogan, J. Sipe   +5 more
semanticscholar   +1 more source

Cancer Statistics, 2021

Ca-A Cancer Journal for Clinicians, 2021
Rebecca L Siegel, Kimberly D Miller
exaly  

Cancer statistics for African American/Black People 2022

Ca-A Cancer Journal for Clinicians, 2022
Angela Giaquinto, Kimberly D Miller, Rebecca L Siegel   +2 more
exaly  

All-fiber mode converter based on long-period fiber gratings written in few-mode fiber.

Optics Letters, 2017
Yunhe Zhao, Yunqi Liu, Chenyi Zhang, Liang Zhang, Guangjun Zheng, C. Mou, J. Wen, Tingyun Wang   +7 more
semanticscholar   +1 more source