2 \,\times\,2 Polymer Thermo-Optic Digital Optical Switch Using Total-Internal-Reflection in Bend-Free Waveguides

2 \,\times\,2 Polymer Thermo-Optic Digital Optical Switch Using Total-Internal-Reflection in Bend-Free Waveguides

We present a novel 2 × 2 polymer thermo-optic digital optical switch (DOS) using the total-internal-reflection (TIR) effect. The switch consists of four 1 × 2 TIR-DOSs cascaded with each other. These TIR-DOSs have two branched multimode waveguides and an offset heater electrode in the branched regio...

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Veröffentlicht in:IEEE photonics technology letters 2012-10, Vol.24 (19), p.1757-1760
Hauptverfasser: Han, Young-Tak, Shin, Jang-Uk, Park, Sang-Ho, Seo, Jun-Kyu, Lee, Hyung-Jong, Hwang, Wol-Yon, Park, Hyo-Hoon, Baek, Yongsoon
Format: Artikel
Sprache:eng
Schlagworte:
Bending
digital optical switch (DOS)
Electrodes
Heating
multimode
Optical switches
Optical waveguides
polymer
Polymers
Propagation losses
thermo-optic
total-internal-reflection (TIR)
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Beschreibung
Zusammenfassung:We present a novel 2 × 2 polymer thermo-optic digital optical switch (DOS) using the total-internal-reflection (TIR) effect. The switch consists of four 1 × 2 TIR-DOSs cascaded with each other. These TIR-DOSs have two branched multimode waveguides and an offset heater electrode in the branched region. Our switch does not have any bent waveguides, and has tapered waveguides and single-mode waveguides only in the input-output fiber coupling region. The fabricated 2 × 2 TIR-DOSs exhibit excellent properties, with very low insertion losses of ; 50 dB in both turned-off and turned-on states.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2012.2210280