Electro-optic waveguide with conductive chromophore contained polymer cladding

Kazuhiro Yamamoto; Feng Yu; Lu Li; Shiyoshi Yokoyama; Akira Otomo; Kei Yasui; Masaaki Ozawa

doi:10.1117/12.2003901

Electro-optic waveguide with conductive chromophore contained polymer cladding

Kazuhiro Yamamoto, Feng Yu, Lu Li, Shiyoshi Yokoyama, Akira Otomo, Kei Yasui, Masaaki Ozawa

Department of Advanced Device Materials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

Polymer electro-optic (EO) waveguides are key component of high performance electro-optic switches. Recently, EO chromophore and host polymer matrix are investigated to get high EO coefficient (r₃₃) and fabricate waveguide structures. To realize high r₃₃, chromophore density in host polymer matrix must be increased. However, high loading density results in lowering of resistivity of EO material. It becomes a problem when chromophore is poled in waveguide structure and EO modulator is worked at low frequency. In this case, EO material is sandwiched by other cladding materials but usually these materials have low conductivity compared with EO material. It means effective electric field applied to EO material and r₃₃ is reduced by cladding material layers. To improve these difficulties, we proposed new chromophore contained polymer material as cladding material of EO waveguide. Addition of EO chromospheres (6 wt %) increase conductivity to 10⁶∼10 ⁷ Ω·m. The value is comparable or above to EO materials. We also present fabrication results of EO ridge waveguide with the chromophore contained cladding polymer.

Original language	English
Title of host publication	Organic Photonic Materials and Devices XV
DOIs	https://doi.org/10.1117/12.2003901
Publication status	Published - 2013
Event	Organic Photonic Materials and Devices XV - San Francisco, CA, United States Duration: Feb 4 2013 → Feb 6 2013

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8622
ISSN (Print)	0277-786X

Other

Other	Organic Photonic Materials and Devices XV
Country	United States
City	San Francisco, CA
Period	2/4/13 → 2/6/13

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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Electro-optic waveguide with conductive chromophore contained polymer cladding. / Yamamoto, Kazuhiro; Yu, Feng; Li, Lu; Yokoyama, Shiyoshi; Otomo, Akira; Yasui, Kei; Ozawa, Masaaki.

Organic Photonic Materials and Devices XV. 2013. 86221K (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8622).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yamamoto, K, Yu, F, Li, L, Yokoyama, S, Otomo, A, Yasui, K & Ozawa, M 2013, Electro-optic waveguide with conductive chromophore contained polymer cladding. in Organic Photonic Materials and Devices XV., 86221K, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8622, Organic Photonic Materials and Devices XV, San Francisco, CA, United States, 2/4/13. https://doi.org/10.1117/12.2003901

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title = "Electro-optic waveguide with conductive chromophore contained polymer cladding",

abstract = "Polymer electro-optic (EO) waveguides are key component of high performance electro-optic switches. Recently, EO chromophore and host polymer matrix are investigated to get high EO coefficient (r33) and fabricate waveguide structures. To realize high r33, chromophore density in host polymer matrix must be increased. However, high loading density results in lowering of resistivity of EO material. It becomes a problem when chromophore is poled in waveguide structure and EO modulator is worked at low frequency. In this case, EO material is sandwiched by other cladding materials but usually these materials have low conductivity compared with EO material. It means effective electric field applied to EO material and r33 is reduced by cladding material layers. To improve these difficulties, we proposed new chromophore contained polymer material as cladding material of EO waveguide. Addition of EO chromospheres (6 wt %) increase conductivity to 106∼10 7 Ω·m. The value is comparable or above to EO materials. We also present fabrication results of EO ridge waveguide with the chromophore contained cladding polymer.",

author = "Kazuhiro Yamamoto and Feng Yu and Lu Li and Shiyoshi Yokoyama and Akira Otomo and Kei Yasui and Masaaki Ozawa",

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AU - Yamamoto, Kazuhiro

AU - Yu, Feng

AU - Li, Lu

AU - Yokoyama, Shiyoshi

AU - Otomo, Akira

AU - Yasui, Kei

AU - Ozawa, Masaaki

PY - 2013

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N2 - Polymer electro-optic (EO) waveguides are key component of high performance electro-optic switches. Recently, EO chromophore and host polymer matrix are investigated to get high EO coefficient (r33) and fabricate waveguide structures. To realize high r33, chromophore density in host polymer matrix must be increased. However, high loading density results in lowering of resistivity of EO material. It becomes a problem when chromophore is poled in waveguide structure and EO modulator is worked at low frequency. In this case, EO material is sandwiched by other cladding materials but usually these materials have low conductivity compared with EO material. It means effective electric field applied to EO material and r33 is reduced by cladding material layers. To improve these difficulties, we proposed new chromophore contained polymer material as cladding material of EO waveguide. Addition of EO chromospheres (6 wt %) increase conductivity to 106∼10 7 Ω·m. The value is comparable or above to EO materials. We also present fabrication results of EO ridge waveguide with the chromophore contained cladding polymer.

AB - Polymer electro-optic (EO) waveguides are key component of high performance electro-optic switches. Recently, EO chromophore and host polymer matrix are investigated to get high EO coefficient (r33) and fabricate waveguide structures. To realize high r33, chromophore density in host polymer matrix must be increased. However, high loading density results in lowering of resistivity of EO material. It becomes a problem when chromophore is poled in waveguide structure and EO modulator is worked at low frequency. In this case, EO material is sandwiched by other cladding materials but usually these materials have low conductivity compared with EO material. It means effective electric field applied to EO material and r33 is reduced by cladding material layers. To improve these difficulties, we proposed new chromophore contained polymer material as cladding material of EO waveguide. Addition of EO chromospheres (6 wt %) increase conductivity to 106∼10 7 Ω·m. The value is comparable or above to EO materials. We also present fabrication results of EO ridge waveguide with the chromophore contained cladding polymer.

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

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T2 - Organic Photonic Materials and Devices XV

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