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在二极管泵浦的拉曼光纤激光器的多模渐变折射率光纤中,通过飞秒脉冲刻写FBG,可产生接近衍射极限的输出光束。这一技术已经应用于工业(通信、生物医学、材料加工、基础设施和能源行业)中的各种激光和传感器系统。从超长光纤自然瑞利散射引起的随机拉曼激光的发现出发,主讲人将介绍使用fs脉冲刻写具有规则/随机的3D折射率结构的多模、多芯光纤的技术,以及新型光纤所具有的独特激光和传感性能,这种新型光纤有望在物理上...
We study the propagation of N-soliton bound state in a triangular gradient refractive index waveguide with nonlocal nonlinearity. The study is based on the direct numerical solutions of the model and ...
The extraordinary spectral sensitivity of surface plasmon resonance (SPR) sensors is commonly attributed to the modal overlap or unique dispersion of surface plasmons. In contrast to this belief, we s...
This paper illustrates an efficient fluorescence detection of micro particles using hollow-core photonic crystal fibers (HC-PCFs) by applying the refractive index (RI) scaling law. The variations in t...
We have newly developed Bi 2 O 3 -B 2 O 3 -TeO 2 glass system. This glass shows high transmittance in visible and near-IR wavelength, in spite of their high refractive index and optical nonlinearity.
Recent optical fiber refractive index profile measurement advances include quantitative phase measurement, multi-wavelength spectroscopy, and computerized tomography. These new techniques, and their a...
A silica fiber and long-period gratings were heated to clarify the effect of the glass structure and the residual stress relaxations on the fiber index profile and resonance wavelengths.The profile ch...
The paper presents the results of investigation which demonstrate the possibilities to shape refractive index profiles of planar waveguides produced in glass using the ion exchange technique with the ...
A simple refractive-index fiber sensor based on a tilted Bragg fiber grating (TFBG) interacting with multimode fiber (MMF) is described. The sensor structure is formed by insertion of a small section ...
We present an integrated refractive index sensor based on a ring-shaped photonic crystal waveguide. We measured the shift in cut-off wavelength for different ambient refractive indices and we observed...
The authors introduce a general mechanism, based on electrostatic and magnetostatic considerations,for designing three-dimensional isotropic metamaterials that possess an enhanced refractive index ove...
Knowledge of the physical parameters and optical constants of sols and sol–gel materials is important in view of their possible applications. In this work, silica and silica-titania sols were examined...
The kinetics of refractive index change in active fiber under pulsed cladding-coupled optical pumping was investigated using interferometric technique. Relaxation processes after lasing threshold was ...
We report the experimental demonstration of a refractive index sensor using scalable bandgap shift in two different structures of solid-core photonic crystal fibers. Resolution ~10 -7 refractive index...
The microchannelled chirped fibre Bragg grating (MCFBG) was fabricated using femtosecond laser processing and HF-etching. Intrinsical refractive-index sensitivity induced by the microchannel makes MCF...

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