D. Sparacin, R. Sun, Anant Agarwal, M. Beals, J. Michel, L. Kimerling, T. Conway, A. Pomerene, D. Carothers, M. Grove, D. Gill, M. Rasras, S. Patel, A. White
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Low-Loss Amorphous Silicon Channel Waveguides for Integrated Photonics
Amorphous silicon (a-Si), single-mode, channel waveguides were fabricated and measured with transmission losses as low as 6.5 dB/cm for the TE mode and 4.5 dB/cm for the TM mode. Variations in the PECVD a-Si deposition conditions yielded a-Si materials with bulk losses <1 dB/cm