Conference Paper

The optical properties of chalcogenide glasses: From measurement to electromagnetic simulation tools

Univ. of Nottingham, Nottingham, UK
DOI: 10.1109/ICTON.2010.5549181 Conference: Transparent Optical Networks (ICTON), 2010 12th International Conference on
Source: IEEE Xplore


Chalcogenide glasses are promising candidate materials for a wide range of photonics applications. The design and realisation of optical components based on these materials requires detailed information on their optical properties, frequently over a range of wavelengths. In this paper we review experimental refractive index data for three chalcogenide glass compositions, and discuss how various numerical fits to the data prove useful within electromagnetic simulation tools.

Download full-text


Available from: Jiri Orava, Aug 04, 2015
97 Reads
  • Source
    • "The respective cross-sectional spectra were then obtained by normalising the absorption and the fluorescence spectra according to the Ladenburg-Fuchtbauer theory (Fowler and Dexter 1962). The shapes of the remaining cross-sectional spectra were obtained from McCumber theory (McCumber 1964) and normalised consistently using the Ladenburg-Fuchtbauer equations (Becker et al. 1999). The missing part of the fluorescence spectrum of the 4.5 µm transition due to CO 2 absorption was extrapolated following Schweizer et al. (1996) as guidance. "
    [Show abstract] [Hide abstract]
    ABSTRACT: A simple Dy3+-doped chalcogenide glass fibre laser design for mid-infrared light generation is studied using a one dimensional rate equation model. The fibre laser design employs the concept of cascade lasing. The results obtained demonstrate that efficient cascade lasing may be achieved in practice without the need for fibre grating fabrication, as a sufficient level of feedback for laser action is provided by Fresnel light reflection at chalcogenide glass fibre–air interfaces. Further enhancement of the laser efficiency can be achieved by terminating one of the fibre ends with a mirror. A numerical analysis of the effect of the Dy3+ doping concentration and fibre loss on the laser operation shows that with 5W of pump power, at 1.71μm wavelength, output powers above 100mW at ∼ 4.5μm wavelength can be achieved with Dy3+ ion concentrations as low as 3×1019cm−3, when fibre loss is of the order 1dB/m. KeywordsFibre lasers–Laser modelling–Mid infrared light–Chalcogenide glass fibres
    Optical and Quantum Electronics 01/2010; 42(2):69-79. DOI:10.1007/s11082-010-9421-z · 0.99 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Non-linear materials are central to many useful integrated photonics applications. Increasingly complex geometries have to be dealt with in full-wave numerical electromagnetic simulators. In this paper we discuss and present techniques for embedding non-linear material response into one such numerical technique, the Transmission Line Modelling (TLM) Method. We discuss the progression from 1D through to 3D problems using Cartesian geometry as well as the migration to unstructured (triangular, tetrahedral) mesh algorithms.
    Transparent Optical Networks (ICTON), 2011 13th International Conference on; 07/2011
  • [Show abstract] [Hide abstract]
    ABSTRACT: The presentation gives an account of recent developments in the modelling of chalcogenide glass based lanthanide doped fibre lasers for the mid-infra-red (MIR) wavelength range. The particular lanthanide elements considered include dysprosium, praseodymium and terbium. Both classical 3 level lasing systems and cascade lasing systems are considered, and their properties compared. Steady state and pulsed operation of the lasers is considered and the possible application as a seed pump for supercontinuum generation is discussed. Several aspects of numerical methods used specifically for the modelling of MIR fibre lasers are also considered.
    Transparent Optical Networks (ICTON), 2012 14th International Conference on; 01/2012
Show more