Polymer 1x2 Thermo-Optic Digital Optical Switch Based on the Total-Internal-Reflection Effect

ETRI Journal

关键词: variable optical attenuator;    total internal reflection;    digital optical switch (DOS);    thermo-optic;    Polymer;   

Others  :  1186143
DOI  :  10.4218/etrij.11.0210.0380

【 摘 要 】

This letter presents a polymer 1x2 thermo-optic total- internal-reflection digital optical switch (TIR-DOS) with an index contrast of 1.5%-∆ operating at low power consumption. The structure of our 1x2 TIR-DOS was created by adding a reflection port to that of a conventional multimode filtering variable optical attenuator. To improve the total-internal- reflection efficiency, a heater offset was applied to the crossing region of multimode waveguides of the TIR-DOS. The fabricated 1x2 TIR-DOS shows a low electrical power consumption of 18 mW for an on-off ratio of 35 dB.

   

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