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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 13 — Jun. 30, 2014
  • pp: 16418–16423

Mesoporous sol-gel silica cladding for hybrid TiO2/electro-optic polymer waveguide modulators

Yasufumi Enami, Yasuhisa Kayaba, Jingdong Luo, and Alex K.-Y. Jen  »View Author Affiliations


Optics Express, Vol. 22, Issue 13, pp. 16418-16423 (2014)
http://dx.doi.org/10.1364/OE.22.016418


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Abstract

We report the efficient poling of an electro-optic (EO) polymer in a hybrid TiO2/electro-optic polymer multilayer waveguide modulator on mesoporous sol-gel silica cladding. The mesoporous sol-gel silica has nanometer-sized pores and a low refractive index of 1.24, which improves mode confinement in the 400-nm-thick EO polymer film in the modulators and prevents optical absorption from the lower Au electrode, thereby resulting in a lower half-wave voltage of the modulators. The half-wave voltage (Vπ) of the hybrid modulator fabricated on the mesoporous sol-gel silica cladding is 6.0 V for an electrode length (Le) of 5 mm at a wavelength of 1550 nm (VπLe product of 3.0 V·cm) using a low-index guest-host EO polymer (in-device EO coefficient of 75 pm/V).

© 2014 Optical Society of America

OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(230.3120) Optical devices : Integrated optics devices
(250.2080) Optoelectronics : Polymer active devices
(250.5460) Optoelectronics : Polymer waveguides
(250.7360) Optoelectronics : Waveguide modulators

ToC Category:
Optoelectronics

History
Original Manuscript: May 15, 2014
Revised Manuscript: June 18, 2014
Manuscript Accepted: June 18, 2014
Published: June 25, 2014

Citation
Yasufumi Enami, Yasuhisa Kayaba, Jingdong Luo, and Alex K.-Y. Jen, "Mesoporous sol-gel silica cladding for hybrid TiO2/electro-optic polymer waveguide modulators," Opt. Express 22, 16418-16423 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-13-16418


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References

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