Multimode interference couplers based on photosensitive hybrid sol-gel material

ABSTRACT Multimode interference couplers (optical splitter and cross coupler) based on photosensitive hybrid sol‐gel material derived from vinyltriethoxysilane, tetraethoxysilane, and tetrabutoxytitanate precursors are demonstrated. The couplers are fabricated on quartz substrate. A cost effective c...

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Bibliographic Details
Published inMicrowave and optical technology letters Vol. 56; no. 5; pp. 1214 - 1218
Main Authors Abdullah, Ahmad S., Ibrahim, Mohd H., Mohd Noor, Muhamad Y., Kassim, Norazan M.
Format Journal Article
LanguageEnglish
Published New York Blackwell Publishing Ltd 01.05.2014
Wiley Subscription Services, Inc
Subjects
Chemical etching
chemical etching technique
Couplers
hybrid sol-gel
Interference
Microwaves
multimode interference
Noise levels
photosensitive
Precursors
Quartz
Sol gel process
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Summary:ABSTRACT Multimode interference couplers (optical splitter and cross coupler) based on photosensitive hybrid sol‐gel material derived from vinyltriethoxysilane, tetraethoxysilane, and tetrabutoxytitanate precursors are demonstrated. The couplers are fabricated on quartz substrate. A cost effective chemical etching technique is used in the couplers fabrication process to take advantage of the photosensitive nature of the hybrid material. The output power imbalance is measured to be less than 0.8 dB while the measured maximum crosstalk is −19.2 dB. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1214–1218, 2014
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ISSN:0895-2477
1098-2760
DOI:10.1002/mop.28306