Fabrication of Proton-Exchange Waveguide Using Stoichiometric LiTaO3 for Guided Wave Electrooptic Modulators with Polarization-Reversed Structure. (16th November 2008)

• Record Type: Journal Article
• Authors: Murata, Hiroshi; Okamura, Yasuyuki
• Other Names: Xu Chang-qing Academic Editor.
• Is Part Of: Advances in optoelectronics. Volume 2008(2008)
• Publication Date: 2008-11-16
• Subjects: Optoelectronics -- Periodicals; Optoélectronique; Optoelectronics; Periodicals; 621.381045
• DOI: 10.1155/2008/654280
• Languages: English
• ISSNs: 1687-563X

Abstract

Abstract : Optical waveguides were fabricated on z-cut stoichiometricLiTaO 3 (SLT) by using the proton-exchange method. The surface index change for the extraordinary ray on the SLT substrate resulting from the proton exchange was 0.017, which coincided well with congruentLiTaO 3 substrates. The proton exchange coefficient in the SLT was0.25 × 10 − 12 cm 2 / s . The application of the SLT waveguide to a quasi-velocity-matched travelling-wave electrooptic modulator with periodically polarization-reversed structure is also reported.