Low loss polysilane 1 × N optical switch circuits by T/O effect

Polysilane 1 × 3 optical switch circuits were fabricated based on the thermo-optic effect. The waveguide insertion losses were less than -3.1 dB. Optical switch was performed with supplied power of 100 mW or less. Crosstalk attenuation was measured as less than 8.95 dB [1], [2], [3].