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Authors: M. Galarza, D. Van Thourhout, R. Baets, M. Lopez-Amo
Title: Compact and highly-efficient polarization independent vertical resonant couplers for active-passive monolithic integration
Format: International Journal
Publication date: 6/2008
Journal/Conference/Book: Optics Express
Volume(Issue): 16(12) p.8350-8358
Internal Reference: [N-732]
Download: Download this Publication (1.2MB) (1.2MB)

Abstract

Compact low-loss polarization independent vertical coupling between a 1.55 mu m InGaAsP bulk active waveguide and a passive waveguide based on bimodal interference is presented. Simulation results show low coupling loss (< 0.1 dB) over coupler lengths more than 5 times shorter than using the adiabatic design. The concept avoids submicron photolithographic features and shows acceptable fabrication tolerances.


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