Electro-optic polymer/titanium dioxide hybrid core ring resonator modulators

Feng Qiu, Andrew Mark Spring, Feng Yu, Isao Aoki, Akira Otomo, Shiyoshi Yokoyama

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Compact electro-optic (EO) modulators are desirable for a number of applications. In this study, a ring modulator has been fabricated in the titanium dioxide (TiO2) core and EO polymer cladding waveguide structure. A 250-nm thick TiO2 core was utilized to minimize the ring radius down to 100 μm, to avoid using the top cladding between the EO polymer and the electrode, and to improve the poling efficiency. The resonance obtained by the ring modulator was observed to shift by 0.02 nm/V due to the enhanced in-device EO coefficient of 105 pm/V. A modulation depth of 3 dB was observed at the frequency response function at 20 kHz using 2-V Vp-p clock signal. Compact electro-optic (EO) modulators are desirable for a number of applications. In this study, a ring modulator has been fabricated in the titanium dioxide (TiO2) core and EO polymer cladding waveguide structure. A 250-nm thick TiO2 core was utilized to minimize the ring radius down to 100 μm, to avoid using the top cladding between the EO polymer and the electrode, and to improve the poling efficiency. The resonance obtained by the ring modulator was observed to shift by 0.02 nm/V due to the enhanced in-device EO coefficient of 105 pm/V. A modulation depth of 3 dB was observed at the frequency response function at 20 kHz using 2-V Vp-p clock signal.

Original languageEnglish
JournalLaser and Photonics Reviews
Volume7
Issue number6
DOIs
Publication statusPublished - Nov 1 2013

Fingerprint

Electrooptical effects
titanium oxides
Titanium dioxide
Modulators
electro-optics
modulators
Resonators
Polymers
resonators
rings
polymers
clocks
frequency response
Frequency response
Clocks
Waveguides
Modulation
waveguides
modulation
Electrodes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Cite this

Electro-optic polymer/titanium dioxide hybrid core ring resonator modulators. / Qiu, Feng; Spring, Andrew Mark; Yu, Feng; Aoki, Isao; Otomo, Akira; Yokoyama, Shiyoshi.

In: Laser and Photonics Reviews, Vol. 7, No. 6, 01.11.2013.

Research output: Contribution to journalArticle

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