“… Performance of various thermo-optic switches regarding power consumption and switching time. The power consumption and switching time are indicated for switches using SOI with air trench [ 62 , 63 , 64 , 65 ], SOI without air trench [ 18 , 46 , 60 , 61 , 67 ], polymer/silica with air trench [ 31 , 33 , 42 ], polymer/silica without air trench [ 35 , 76 , 77 , 78 , 79 , 80 ], all polymer without air trench [ 71 , 72 , 73 , 74 ]. …”