We demonstrate an optical diode with up to 28dB transmission contrast at telecommunication wavelengths. It is based on strong optical nonlinearity in two resonance-matched silicon microrings. No external assistance other than input light is required.
© 2012 OSA
L. Fan, J. Wang, L. Varghese, H. Shen, B. Niu, Y. Xuan, A. Weiner, and M. Qi, "An All-Silicon Passive Optical Diode," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (online) (Optical Society of America, 2012), paper CW1K.4.
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