Results 211 to 220 of about 11,380 (266)

Design and fabrication of praseodymium-doped optical waveguides

SPIE Proceedings, 2002
The feasibility of a planar channel waveguide amplifier and laser made of praseodymium (Pr 3+ ) doped chalcogenide glass, based on the binary composition GeS 2 , is investigated by means of an appositely implemented computer code. The buried channel waveguide amplifier, having both core and substrate doped with a dopant concentration Nequals3000 ppm ...
Francesco Prudenzano, Antonella D'Orazio, Marco De Sario, Luciano Mescia, Vincenzo Petruzzelli, Annapaola Caricato, Gilberto Leggieri, Maurizio Martino   +7 more
openaire   +3 more sources

Optical-Waveguide Band-Rejection Filters: Design

Applied Optics, 1974
A method for designing optical-waveguide band-rejection filters is presented that allows side-lobe levels to be reduced by several orders of magnitude while the rolloff rate of the response characteristics is not appreciably degraded. The method is based upon the control of the shape of the perturbation-amplitude envelope.
M, Matsuhara, K O, Hill
openaire   +2 more sources

Design of SiOx slab optical waveguides

SPIE Proceedings, 2015
An analysis of the dispersion relation of SiOx submicron optical waveguides in the visible and IR spectral range is presented. Here is considered that the refractive index (n) of SiOx can be tuned in the range from n=1.457-2 for 2>x>1, and a film thickness from 50nm to 1000nm.
Lizarraga-Medina, Eder, Oliver, Alicia, Vazquez, Gloria, Salas-Montiel, Rafael, Márquez Becerra, Heriberto   +4 more
openaire   +2 more sources

Versatile waveguide design for optical amplification

Optical Fiber Communication Conference and International Conference on Quantum Information, 2001
Optical amplification in novel rare-earth-doped waveguides is demonstrated. Design and measurements of an Erbium/Ytterbium co-doped glass waveguide amplifier are presented. The benefits of the design as applied to low-cost amplification are discussed.
B.L. Lawrence, L.P. Clow, S.E. Flint, M.C. Mendrick, T.P. Maney, J.L. Schulze, T.R. Holland, S.J. DeDell   +7 more
openaire   +1 more source

Planar optical waveguide lens design

Applied Optics, 1982
Achieving diffraction-limited planar waveguide lenses is not an easy task in practice. However, conventional lens design principles (ray tracing, intercept and OPD errors, point spread functions, and optimization techniques) may be used to evaluate performance, reduce cost or complexity, and provide alignment and manufacturing tolerances.
openaire   +2 more sources

Design and simulation of optical waveguide for electro-optic modulator

2014 International Conference on Advances in Engineering & Technology Research (ICAETR - 2014), 2014
Optical waveguide is the backbone of an electrooptic modulator (EOM). In this paper an optical waveguide design is proposed for EOM. The proposed optical waveguide provide better impedance and velocity matching to the electrode as compare to the previous work done on electro-optic modulator.
Aslam Khan, Rekha Mehra
openaire   +1 more source

Waveguide optical isolator: a new design

Applied Optics, 1991
A new design of a thin film waveguide optical isolator is described. It is composed of a nonreciprocal mode converter by the Faraday effect, a reciprocal mode converter by the Cotton-Mouton effect, an integrated mirror, and TE-mode selectors. Its mode transfer matrices are derived.
openaire   +2 more sources

Design and Simulation of a New Planar Optical Waveguide Amplifier

Optical Amplifiers and Their Applications, 2001
An innovative layout for Er-doped planar optical waveguide amplifiers is proposed. The device integrates on a single chip the amplifier section and the pump/signal demultiplexer enhancing the compactness and the mechanical stability.
PERRONE, Guido, MORO A., MONTROSSET, Ivo
openaire   +2 more sources

Optimization of waveguide coupling lenses with optical design software

Applied Optics, 1996
We show that the coupling efficiency of an optical system to a waveguide can be related to an apodized and normalized point spread function. Adapting the problem to the use of optical design software, we analyze and optimize systems that contain a fair amount of aberration.
M, Côté, R R, Shannon
openaire   +2 more sources

Design of optical waveguides considering thermo-mechanical aspects

Proceedings of the 6th International Conference on Networking, Systems and Security, 2019
Optical waveguides are used as components in integrated optical circuits and as the transmission medium in optical communication systems. In recent age, optical fiber communication is the most promising contribution in communication systems due to its numerous advantages. Fabrication of optical waveguide is a very complex process.
Rahatuzzaman, Al-Zadid Sultan Bin Habib, Atik Mahabub   +2 more
openaire   +1 more source