Preliminary experimental results on thermo-optic induced modulation in a silicon etalon at 1.5 mm are reported. The measures have also allowed an accurate determination of the thermo-optic effect in silicon at this wavelength. Finally, a new class of all-silicon integrated Fabry-Perot modulators at 1.3 and 1.5 mm, based on thermo-optic effect, is proposed.
"All-silicon Fabry-Perot modulator based on thermo-optic effect", Proc. SPIE 1583, Integrated Optical Circuits, (1 December 1991); doi: 10.1117/12.50903; https://doi.org/10.1117/12.50903