Open AccessPolymer 1×2 Thermo‐Optic Digital Optical Switch Based on the Total‐Internal‐Reflection Effect
Author(s) -
Han YoungTak,
Shin JangUk,
Park SangHo,
Han SangPil,
Baek Yongsoon,
Lee ChulHee,
Noh YoungOuk,
Park HyoHoon
Publication year - 2011
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.11.0210.0380
Subject(s) - attenuator (electronics) , total internal reflection , optics , optical attenuator , power consumption , materials science , optical power , multi mode optical fiber , reflection (computer programming) , offset (computer science) , optoelectronics , power (physics) , optical fiber , attenuation , physics , computer science , laser , quantum mechanics , programming language
This letter presents a polymer 1×2 thermo‐optic total‐internal‐reflection digital optical switch (TIR‐DOS) with an index contrast of 1.5%‐Δ operating at low power consumption. The structure of our 1×2 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 1×2 TIR‐DOS shows a low electrical power consumption of 18 mW for an on‐off ratio of 35 dB.