Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application

We report that we have successfully designed and fabricated a significantly shortened multimode interference coupler for application in polarization splitter, using a phenomenon that we termed "quasi-state" (QS) imaging effect. First, we identified and analyzed the QS imaging effect, and,...

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Bibliographic Details
Published in:IEEE photonics technology letters 2003-01, Vol.15 (1), p.72-74
Main Authors: Hong, Jung Moo, Ryu, Hyun Ho, Park, Soon Ryong, Jeong, Jae Wan, Lee, Seung Gol, Lee, El-Hang, Park, Se-Geun, Woo, Deokha, Kim, Sunho, O, Beom-Hoan
Format: Article
Language:English
Subjects:
Costs
Design engineering
Devices
Homogeneity
Image analysis
Imaging
Interference
Joining
Magnetic analysis
Optical device fabrication
Optical fiber polarization
Optical imaging
Optical interferometry
Optical polarization
Optical waveguides
Polarization
Tolerances
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Summary:We report that we have successfully designed and fabricated a significantly shortened multimode interference coupler for application in polarization splitter, using a phenomenon that we termed "quasi-state" (QS) imaging effect. First, we identified and analyzed the QS imaging effect, and, based on the QS analysis, designed and fabricated a novel multimode interference (MMI) device with its split length shortened to 1/5 of a normally designed MMI split length. The fabrication is simple and cost effective and the fabricated device shows outstanding characteristics in extinction ratio, signal homogeneity, excess loss, and tolerance in the length of the splitter.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2002.805803