P. Cheben, J. Schmid, A. Bogdanov, M. L. Calvo, A. Delâge, A. Densmore, S. Janz, B. Lamontagne, J. Lapointe, Ó. M. Matos, E. Post, I. Powell, J. Rodrigo, P. Waldron, D. Xu
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We present several new concepts to extend the capabilities of arrayed waveguide grating spectrometers. Strong lateral mode confinement waveguide structure in the focal plane is used to increase resolution, a Michelson-type AWG spectrometer can improve optical throughput or etendue, and we show that AWG dispersion can be magnified many times by modifying the waveguide group index