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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Reid, Derryck
Heriot-Watt University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2013Two-photon laser-assisted device alteration in silicon integrated-circuitscitations
- 2011Ultrafast laser writing of optical waveguides in ceramic Ybcitations
- 2010Wavelength stabilization of a synchronously pumped optical parametric oscillatorcitations
- 2010Laser action from an ultrafast laser inscribed Nd-doped silicate glass waveguidecitations
- 2010Ultrafast laser inscribed Nd-doped silicate glass waveguide laser
- 2008Weak-guidance-theory review of dispersion and birefringence management by laser inscriptioncitations
- 2008Solid immersion lens applications for nanophotonic devicescitations
- 2008Mid-infrared gas sensing using a photonic bandgap fibercitations
- 2008Control of the carrier-envelope phases of a synchronously pumped femtosecond optical parametric oscillator and its applications
- 2006Internal gain from an erbium-doped oxyfluoride-silicate glass waveguide fabricated using femtosecond waveguide inscriptioncitations
- 2005Active waveguide fabrication in erbium-doped oxyfluoride silicate glass using femtosecond pulsescitations
Places of action
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article
Weak-guidance-theory review of dispersion and birefringence management by laser inscription
Abstract
<p>A brief review of laser inscription of micro- and nanophotonic structures in transparent materials is provided in terms of a compact and convenient formalism based on the theory of weak optical waveguides, We derive physically instructive approximate expressions allowing propagation constants of laser-inscribed micro- and nanowaveguides to be calculated as functions of the transverse waveguide size, refractive index step, and dielectric properties of the host material, Based on this analysis, we demonstrate that dispersion engineering capabilities of laser micromachining techniques are limited by the smallness of the refractive index step typical of laser-inscribed structures. However, a laser inscription of waveguides in pre-formed micro- and nanostructures suggests a variety of interesting options for a fine dispersion and birefringence tuning of small-size waveguides and photonic wires. A graph is presented. Dispersion and loss of guided modes in a silica-core air-cladded waveguide with a core radius a = 5 µm modified by a laser-inscribed grating with an index contrast dn = 0.001 and a lattice constant A/l ˜ 0.54 µm (l is an integer): propagation constant of the fundamental mode in the waveguide without a grating ß<sub>o</sub> (dashed line), the real parts of propagation constants of the forward (ß<sub>f</sub>, solid line) and backward (ß<sub>b</sub>, dash-dotted line) modes coupled by the laser-inscribed grating, the imaginary part of the propagation constants of strongly coupled guided modes a (dotted line). © 2008 by Astro Ltd.</p>