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Linearized electro-optic modulators based on a two-section Y-fed directional coupler

TitleLinearized electro-optic modulators based on a two-section Y-fed directional coupler
Publication TypeJournal Article
Year of Publication2010
AuthorsLee, B S., C-Y. Lin, A. X. Wang, R. Dinu, and R. T. Chen
JournalApplied Optics
Volume49
Issue33
Pagination6485
Date Published11/2010
ISSN1539-4522
Abstract

We experimentally demonstrate a linearized Y-fed directional coupler (DC) modulator based on an electro-optic (EO) polymer waveguide. The spurious free dynamic range of 119dB/Hz2/3 , which is 11dB higher than that of the conventional Mach–Zehnder modulator, is achieved by introducing the reversed Δβ technique in the two-section Y-fed DC. The in-device EO coefficient ( r33 ) of the fabricated device is as high as 79pm/V in 1.55μm wavelength, which is 88% of a single film r33 of LPD-80/APC

DOI10.1364/AO.49.006485
Short TitleAppl. Opt.