title: Improved Long-Term DC Drift in OH-Reduced Lithium Niobate Optical Intensity Modulators.
abstract: Long-term dc drift of lithium niobate optical intensity modulators is successfully reduced by exclusion of OH(-)ions from the lithium niobate substrate. In this regard, the titanium-indiffused waveguide is prepared on a commercial OH-free substrate under a dry gas atmosphere.The dc drift measured for these hermetically sealed modulators indicates a possibility for continuous operation over 20 years at 50°C.
authors.forename: H
authors.initials: H
authors.lastname: Nagata
authors.forename: J
authors.initials: J
authors.lastname: Ichikawa
authors.forename: N
authors.initials: N
authors.lastname: Mitsugi
authors.forename: T
authors.initials: T
authors.lastname: Sakamoto
authors.forename: T
authors.initials: T
authors.lastname: Shinriki
authors.forename: H
authors.initials: H
authors.lastname: Honda
authors.forename: M
authors.initials: M
authors.lastname: Kobayashi