DocumentCode
1114386
Title
Precise control of phase constant of optical guided-wave devices by loading Langmuir-Blodgett films
Author
Haga, Hiroshi ; Yamamoto, Sadahiko
Author_Institution
Fac. of Eng. Sci., Osaka Univ., Japan
Volume
6
Issue
6
fYear
1988
fDate
6/1/1988 12:00:00 AM
Firstpage
1024
Lastpage
1027
Abstract
A Langmuir-Blodgett film is used as a cover layer of single mode waveguide to precisely control the phase constant of the guided-mode. The change of phase constant caused by the cover layer is evaluated by measuring the retardation between the two arms of the ion-exchanged glass waveguide Mach-Zehnder interferometer, a part of which is loaded by Langmuir-Blodgett films. A monolayer of cadmium stearate has varied the phase constant on the order of 10-6. This method can be used to adjust the phase difference or shift to tune the performance of guided-wave devices such as directional couplers and modulators
Keywords
Langmuir-Blodgett films; ion exchange; light interferometers; optical films; optical waveguides; Langmuir-Blodgett films; cadmium stearate; directional couplers; ion-exchanged glass; optical guided-wave devices; phase constant; phase difference; retardation; Arm; Glass; Optical control; Optical devices; Optical films; Optical interferometry; Optical waveguide components; Optical waveguides; Phase measurement; Waveguide transitions;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/50.4094
Filename
4094
Link To Document