Results 81 to 90 of about 75,635 (165)

Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications

, 2006
Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Kirkendall, C. K., Flockhart, G. M. H., Cranch, Geoffrey A.   +2 more
core   +1 more source

Design of coupling system in fiber optic sensing measurement

Journal of Measurement Science and Instrumentation, 2019
According to the principle of choosing the light source in the fiber optic sensing measurement, semiconductor laser is used as the light source of fiber optic sensor and single-mode fiber is used as the tail fiber of light source. Based on optical design
YANG Rui-feng, GAI Ting, GUO Chen-xia, HU Chen-hao, LANG Guo-wei   +4 more
doaj  

Robust strain sensor based on multimode interference in single-mode–multimode–single-mode fiber structure

, 2018
Single-mode–multimode–single-mode (SMS) structure is demonstrated as a strain sensor. The device is fabricated by splicing a section of multimode optical fiber (MMF) in between single-mode fibers (SMFs).
Harun, Sulaiman Wadi, Razak, Hashim Abdul, Jusoh, Zulzilawati, Azmi, N.M., Yusof, Nur Hotimah   +4 more
core  

Efficient fiber Bragg grating and fiber Fabry-Pe'rot sensor multiplexing scheme using a broadband pulsed mode-locked laser

, 2005
A pulsed broadband mode-locked laser (MLL) combined with interferometric interrogation is shown to yield an efficient means of multiplexing a large number of fiber Bragg grating (FBG) or fiber Fabry-Perot (FFP) strain sensors with high performance ...
Flockhart, G M H, Cranch, G A, Kirkendall, C K   +2 more
core   +1 more source

First demonstration of single trench fiber for delocalization of higher order modes

We demonstrate an ytterbium-doped single-trench fiber ensuring a high losses ratio (~1000) and low power fraction (~0.7) between the higher-order-modes and fundamental-mode with excellent bend robustness and 85% laser efficiency at a wavelength of ...
Baskiotis, C., Kim, Jae-Sun, Jain, D., Sahu, J.K.   +3 more
core  

Efficient higher-order mode filtering in multimode optical fiber based on an optical microwire

We report the use of an optical microwire (OMW) with specifically designed transition region as an efficient tool to filter higher-order modes in multimode waveguides.
Brambilla, Gilberto, Jung, Yongmin, Richardson, David J.   +2 more
core  

Cladding-pumped Raman fiber with a W-type core designed for power scaling

, 2009
We design a cladding-pumped fiber Raman amplifier with a wavelength-filtering W-type core for the suppression of the 2nd-order Raman Stokes.
J. Ji, J. Nilsson, Nilsson, J., Ji, J., Codemard, C.A., C. A. Codemard   +5 more
core   +1 more source

Highly nonlinear non-silica glass microstructured optical fibers with near-zero dispersion and dispersion slope for 1.55 micron applications

, 2009
Microstructured optical fiber (MOF) technology has generated several new opportunities for the implementation of optical fibers with novel properties and functions [1].
OTON NIETO, CLAUDIO JOSE, Camerlingo, A., White, N.M., Frampton, K. E., X. Feng, Frampton, K.E., Feng, X, Petropoulos, P., Richardson, D.J., K.E. Frampton, White, N. M., Poletti, F., Loh, W.H., C. Oton, N.M. White, Oton, C.J., Loh, W. H., D.J. Richardson, P. Petropoulos, W.H. Loh, F. Poletti, Feng, X., A. Camerlingo, Richardson, D. J.   +23 more
core   +1 more source

A solid one-dimensional microstructured optical fiber with high nonlinearity and low dispersion at 1.55 microns

, 2009
We report on the fabrication of a solid one-dimensional microstructured fiber with high nonlinearity and low dispersion at 1.55µm. A four-wave-mixing based tunable wavelength-conversion scheme was experimentally demonstrated in just 1.5m of this ...
Camerlingo, A., Horak, P., Petropoulos, P., Parmigiani, F., Richardson, D.J., Poletti, F., Loh, W.H., Feng, X.   +7 more
core  

Generation and Dynamics of Multiple Pulses in an Ultrafast Fiber Laser with a Single-Mode Fiber–Graded-Index Multimode Fiber–Single-Mode Fiber-Based Saturable Absorber

Photonics
In this study, we have investigated the evolution process and dynamic characteristics of a multi-pulse regime in an erbium-doped fiber ring laser based on a single-mode fiber–graded-index multimode fiber–single-mode fiber (SMF-GIMF-SMF) structure as an ...
Yatao Yang, Qiong Zeng, Yanzhao Yang, Geguo Du, Jianhua Ji, Yufeng Song, Zhenhong Wang, Ke Wang   +7 more
doaj   +1 more source