کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
847009 909216 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Refractive index sensor of Mach–Zehnder interferometer based on thermo-optic effect of SOI waveguide
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Refractive index sensor of Mach–Zehnder interferometer based on thermo-optic effect of SOI waveguide
چکیده انگلیسی

We propose a Mach–Zehnder interferometry (MZI) refractive index sensor based on thermo-optic effect of silicon-on-insulator (SOI) waveguide to detect refractive index of liquid. By modulating silicon temperature the phased shift induced by the sample index change is compensated to ensure the output power is unchanged. The phase-matching conditions for a valid refractive index sensor are discussed to direct the design for lengths of sensing and heating areas. Meanwhile the sensitivity and resolution of the refractive index sensor are also analyzed. The proposed thermo-optic compensation method shows noticeable advantages compared with refractive index sensor by directly detecting the output power. Based on these discussions, a refractive index sensor with a compact size of 2 mm × 1.5 mm can be realized with a sensitivity of 48,000K/RIU and a resolution of 2 × 10−6 can be realized.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 127, Issue 16, August 2016, Pages 6366–6370
نویسندگان
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