Nanostructured fibers for sub-10 fs optical pulse delivery

Abstract

A novel fiber technology is presented that enables the transmission of 200 nm wide spectra over meter‐long distances with minimal temporal reshaping and acceptable losses down to about 3 dB/m. Delivery of a 10 fs pulse over nearly meter distance is experimentally demonstrated, which sets a new standard for the fiber‐based delivery of few‐cycle pulses. Numerical simulations provide insight into the unique guiding mechanism in the novel hollow‐core fiber technology, enabling dispersion parameters that are within an order of magnitude of those available in free space propagation.

Trapped photons at a Dirac point: a new horizon for photonic crystals

“…Thirdly, it leads to a localized mode of what is termed power‐law asymptotics, thus enabling long‐range coupling between cavities and waveguides. This new coupling will be useful in filter and laser array designs since two‐dimensional triangular, or honeycomb lattices, are the common structures of photonic crystal fibers . Guiding relying upon the inherent Dirac point of these fiber structures could introduce radically new dispersion phenomena for optical fiber communication systems.…”

“…They can support localized modes, which are properties of cavities, or waveguides . From such properties many optical devices can be built, including mainstream optical fibers , couplers/filters , and lasers . These devices acquire their functionality through internal trapping of light within, or cross‐coupling between, basic cavity/waveguide building blocks.…”

Hp-finite-elements for simulating electromagnetic fields in optical devices with rough textures

“…Recently, our FEM Maxwell solver (JCMsuite) has been applied for various tasks in optics design. Among these are the design of microstructured fibers, 6,7 solar cells, 8 microlithography masks, 9 integrated microlenses, 10 metamaterials, 11 microcavities, 12,13 plasmonic waveguides, 14 scatterometry reference standards, 15 and others. 16 Here, we discuss a method for improvement of numerical performance, so-called hp-FEM.…”