1. and . Thermooptic waveguide switches in glass. Tech. Rep. I.E.C.E., Japan, OQE81-106 (1981).
2. Thermo-optic effect in LiNbO3, for light deflection and switching
3. and . Thermooptic μs-order switching in single-mode glass waveguides. Tech. Rep. I.E.C.E., Japan, OQE82-67 (1982).
4. Thermooptic deflection and switching in glass
5. , and . Optical switch using thermally induced refractive index gradient. Papers of Technical Group on Microwaves. I.E.C.E., Japan, MW84-67 (1984).