Frankfurt 2006 – scientific programme

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Q: Quantenoptik und Photonik

Q 59: Photonische Kristalle IV

Q 59.5: Talk

Thursday, March 16, 2006, 12:10–12:25, HI

FEM Investigation of Light Propagation in Hollow Core Photonic Crystal Fibers — •Jan Pomplun¹, Sven Burger¹, Ronald Holzlöhner², Roland Klose¹, Lin Zschiedrich¹, and Frank Schmidt¹ — ¹Zuse Institute Berlin, Takustraße 7, D - 14195 Berlin — ²European Southern Observatory, Karl - Schwarzschild - Straße 2, D - 85748 Garching

Hollow core holey fibers are promising candidates for low-loss guidance of light in various applications, e.g., for the use in laser guide star adaptive optics systems in optical astronomy. We present an accurate and fast method for the computation of light modes in arbitrarily shaped waveguides. Maxwell’s equations are discretized using vectorial finite elements (FEM). We discuss how we utilize concepts like adaptive grid refinement and higher order finite elements, and we investigate the convergence behavior of our methods. Further, appropriate transparent boundary conditions for the computation of leaky modes in photonic crystal fibers will be discussed.