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Low-Loss Wide-Angle Polymeric Single-Mode Y-Junctions
AK Das, MK Pandit, S Ghosh,
Published in Springer India
Volume: 28
Issue: 1
Pages: 21 - 31
The fabrication of polymeric single-mode step and Gaussian refractive index profile Y-branch is described. We used poly (methyl methacrylate) and a mixture of two inter miscible monomers for the cladding and the core, respectively, of the device. The cores of the device with step-index profile were fabricated by mask-based photolithography technique whereas for Gaussian-index profiles, maskless laser direct-writing technique was used. We fabricated normal and truncated Y-branch structures. Truncated structures with phase-front accelerator shows less radiation loss and hence more efficiency for the wide-angle Y-junction compared to that of normal structures. For truncated structure the efficiency of graded-index profile is more than that of step-index profile though normal step-index profile structure is better than that of normal graded-index.
About the journal
JournalData powered by TypesetJournal of Optics
PublisherData powered by TypesetSpringer India
Open AccessNo