In-fiber modal Mach-Zehnder interferometer based on the locally post-processed core of a photonic crystal fiber

We demonstrate a novel, compact and low-loss photonic crystal fiber modal Mach-Zehnder interferometer with potential applications to sensing and WDM telecommunications. By selectively collapsing a ~1-mm-long section of a hole next to the solid core, a pair of modes of the post-processed structure ar...

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Veröffentlicht in:Optics express 2011-02, Vol.19 (4), p.3124-3129
Hauptverfasser: Gerosa, Rodrigo M, Spadoti, Danilo H, Menezes, Leonardo de S, de Matos, Christiano J S
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container_issue 4
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container_title Optics express
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creator Gerosa, Rodrigo M
Spadoti, Danilo H
Menezes, Leonardo de S
de Matos, Christiano J S
description We demonstrate a novel, compact and low-loss photonic crystal fiber modal Mach-Zehnder interferometer with potential applications to sensing and WDM telecommunications. By selectively collapsing a ~1-mm-long section of a hole next to the solid core, a pair of modes of the post-processed structure are excited and interfere at its exit. A modulation depth of up to ~13 dB and an insertion loss as low as 2.8 dB were achieved. A temperature sensitivity of -53.4 pm/°C was measured, making the device suitable for temperature sensing.
doi_str_mv 10.1364/OE.19.003124
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title In-fiber modal Mach-Zehnder interferometer based on the locally post-processed core of a photonic crystal fiber
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