24 October 2012 Temperature-independent silicon waveguides comprising bridged subwavelength gratings
Author Affiliations +
Proceedings Volume 8412, Photonics North 2012; 84120Z (2012) https://doi.org/10.1117/12.2001480
Event: Photonics North 2012, 2012, Montréal, Canada
Athermal operation of silicon waveguides for the TM and TE mode is achieved using the bridged subwavelength grating (BSWG) waveguide geometry. For the TM mode the experimental results show that the temperature-induced wavelength shift (dλ/dT) is an order of magnitude smaller for the BSWG waveguides with grating duty cycle, waveguide and bridge widths of 42%, 490 nm and 220 nm, respectively, as compared to standard photonics wires (PW). For the TE mode similar results are achieved by using the bridge width of 200 nm and similar duty cycle and waveguide width. A temperature-induced shift of only -2.5 pm/°C is reported for the TM polarized light. Propagation losses of BSWG waveguides for both polarizations were measured to be about 8 dB/cm, comparable to that of PWs.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Ibrahim, M. Ibrahim, A. Aleali, A. Aleali, J. H. Schmid, J. H. Schmid, P. Cheben, P. Cheben, J. Lapointe, J. Lapointe, S. Janz, S. Janz, P. J. Bock, P. J. Bock, A. Densmore, A. Densmore, B. Lamontagne, B. Lamontagne, R. Ma, R. Ma, D.-X. Xu, D.-X. Xu, W. N. Ye, W. N. Ye, "Temperature-independent silicon waveguides comprising bridged subwavelength gratings", Proc. SPIE 8412, Photonics North 2012, 84120Z (24 October 2012); doi: 10.1117/12.2001480; https://doi.org/10.1117/12.2001480


Athermal and low loss ridge silicon waveguides
Proceedings of SPIE (February 16 2010)
Silicon photonics
Proceedings of SPIE (December 21 1997)
Athermal silicon subwavelength grating waveguides
Proceedings of SPIE (September 08 2011)
Slot-based athermal silicon arrayed-waveguide grating (AWG)
Proceedings of SPIE (November 10 2008)

Back to Top