Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Gordon K. L. Wong"'
Publikováno v:
Journal of Lightwave Technology
We report on intra- and inter-modal four-wave-mixing (FWM) in N-fold rotationally symmetric (C_N) single- and multi-core chiral photonic crystal fiber (PCF), created by spinning the preform during fiber drawing. The non-circular modal field is forced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb1d025c714cf79f1af6e38898562251
https://hdl.handle.net/21.11116/0000-000C-CF04-7
https://hdl.handle.net/21.11116/0000-000C-CF04-7
Autor:
Xinglin Zeng, Philip St.J. Russell, Christian Wolff, Michael H. Frosz, Gordon K. L. Wong, Birgit Stiller
Publikováno v:
Science Advances
Optical nonreciprocity, which breaks the symmetry between forward and backward propagating optical waves, has become vital in photonic systems and enables many key applications. So far, all the existing nonreciprocal systems are implemented for linea
Publikováno v:
Conference on Lasers and Electro-Optics.
We report a nonreciprocal reconfigurable light-driven isolator for vortex modes based on topology-selective Brillouin scattering in chiral PCF. The isolation rates are higher than 22 dB and 23 dB for 1st- and 2nd-order optical vortices.
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Circular-symmetric optical fibres are ideal for studying nonlinear optical processes involving optical vortices [1] . Chiral photonic crystal fibres (PCFs), fabricated either by post-processing techniques or by spinning the preform during fibre drawi
Autor:
Gordon K. L. Wong, Paul Roth, Michael H. Frosz, Daniel R. Häupl, Markus Lippl, P. St. J. Russell, Nicolas Joly
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Knowledge of the phase and amplitude of an optical field is of critical importance in many applications, for example in measuring the carrier envelope phase of an ultrashort pulse. While the intensity spectrum can easily be obtained using a spectrome
Autor:
P. St. J. Russell, Gordon K. L. Wong, Paul Roth, Birgit Stiller, Wenbin He, Jie Huang, Michael H. Frosz, Xinglin Zeng
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Stimulated Brillouin scattering (SBS) in optical fibres, in which guided light is parametrically reflected by coherent acoustic phonons, provides a powerful and flexible mechanism for controlling light, and has recently been demonstrated with orbital
Publikováno v:
Optics letters. 46(2)
We report the first, to the best of our knowledge, observation of cross-phase modulational instability (XPMI) of circularly polarized helical Bloch modes carrying optical vortices in a twisted photonic crystal fiber with a three-fold symmetric core,
Autor:
Xinglin Zeng, Wenbin He, Michael H. Frosz, Andreas Geilen, Paul Roth, Gordon K. L. Wong, Philip St.J. Russell, Birgit Stiller
Publikováno v:
Photonics Research
Stimulated Brillouin scattering (SBS) has many applications; for example, in sensing, microwave photonics, and signal processing. Here, we report the first experimental study of SBS in chiral photonic crystal fiber (PCF), which displays optical activ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acd2e81aa5571d515d101d69806bc47e
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
We report the first experimental demonstration of cross-phase modulational instability of circularly polarized vortex modes in a twisted PCF with a threefold symmetric core. The polarization and topological charge of the generated sidebands are measu
Generation of broadband circularly polarized supercontinuum light in twisted photonic crystal fibers
Autor:
G. Ahmed, Nicolas Joly, Xin Jiang, Rafal Sopalla, Michael H. Frosz, Philip St. J. Russell, Gordon K. L. Wong
Publikováno v:
Optics letters. 44(16)
We compare the properties of the broadband supercontinuum (SC) generated in twisted and untwisted solid-core photonic crystal fibers when pumped by circularly polarized 40 picosecond laser pulses at 1064 nm. In the helically twisted fiber, fabricated