(1) Institute of Advanced Studies, Department of Applied Mathematics, Australian National University, 2600 Canberra, ACT, Australia;(2) Present address: Department of Physics, Indian Institute of Technology, 110 029 New Delhi, India
Abstract:
We present a straightforward geometric optics method to calculate the power attenuation induced by a circular bend in the axis of a multimode optical waveguide. The method involves tracing of rays and use of generalized power transmission coefficients. Both slab and fibre waveguides (with either step-index or parabolic core profiles) have been considered; the source has been assumed to be Lambertian.