We report interferometric switching experiments with an InGaAs semiconductor optical amplifier (SOA). Measured switching windows reveal ultrafast refractive index changes attributed to carrier heating. This conclusion is supported by calculations using a phenomenological model.
© 2004 Optical Society of America
A. Gomez-Iglesias, J. G. Fenn, M. Mazilu, A. Miller, and R. J. Manning, "Carrier heating in a Terahertz Optical Asymmetric Demultiplexer," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper CFC5.