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We describe a low-loss fiber-bundle-type fan-in/fan-out device for 6-mode 19-core fiber, which achieves physical-contact connection. We suppress the mode-dependent loss of the device by accurately arranging fibers and utilizing a precise rotational alignment mechanism.
Silica-based planar lightwave circuit (PLC) technologies are widely deployed in the key devices of practical passive optical network systems. They have certain prominent features for realizing the commercial fiber-to-the-home service economically. This paper reviews the assembly technology of PLC-type optical splitter modules that can be applied to various PLC devices and the high reliability needed...
Silica-based planar lightwave circuits (PLCs) are widely used as the key components in fiber-to-the-home (FTTH) systems because of their various advantages. This paper reviews the reliability of the PLC-type 8-branch optical splitter for outdoor plant.
Silica/LiNbO3 hybrid integration enables us to realize compact and low-loss optical modulators for advanced formats. We propose a hybrid modulator design to mitigate the difference between the thermal expansion of a silicon substrate and LiNbO3, and report the evaluation results.
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