Photodefinable electro-optic polymer for high-speed modulators

Author

Balakrishnan, M. ; Faccini, M. ; Diemeer, M.B.J. ; Verboom, W. ; Driessen, A. ; Reinhoudt, D.N. ; Leinse, A.

Author_Institution

MESA+ Inst. for Nanotechnol., Univ. of Twente, Enschede, Netherlands

Volume

42

Issue

1

fYear

2006

Abstract

Direct waveguide definition of a negative photoresist (SU8) containing tricyanovinylidenediphenylaminobenzene (TCVDPA) as electro-optic (EO) chromophore, has been demonstrated for the first time. This was possible by utilising the chromophore low absorption window in the UV region allowing crosslinking of the host polymer by exposing to UV light followed by thermal curing. TCVDPA was modified by attachment of bulky side groups. This reduced the intermolecular interactions and resulted in an increased EO (r₃₃) coefficient

Keywords

curing <high-speed modulators, photodefinable EO polymer>; electro-optical modulation <high-speed modulators, photodefinable EO polymer>; photoresists <high-speed modulators, photodefinable EO polymer>; polymers <high-speed modulators, photodefinable EO polymer>; UV light; UV region; chromophore low absorption window; crosslinking; direct waveguide definition; electro-optic chromophore; high-speed modulators; intermolecular interactions; negative photoresist; photodefinable electro-optic polymer; photodefinition; thermal curing; tricyanovinylidenediphenylaminobenzene;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20063535

Filename

1577616