Integrated optical Mach-Zehnder interferometer with a sensing arm of sub-wavelength grating waveguide in SOI
| Autor: | R Sumi, Bijoy Krishna Das, Nandita Das Gupta |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry Physics::Optics Optical ring resonators 02 engineering and technology Grating Mach–Zehnder interferometer Cladding (fiber optics) Waveguide (optics) law.invention Interferometry 020210 optoelectronics & photonics Optics law 0202 electrical engineering electronic engineering information engineering Astronomical interferometer business Diffraction grating |
| Zdroj: | 2017 IEEE SENSORS. |
| DOI: | 10.1109/icsens.2017.8234125 |
| Popis: | An integrated optical Mach-Zehnder interferometer comprised of a sensing arm of sub-wavelength grating waveguide and a reference waveguide arm insensitive to cladding refractive index change has been proposed and demonstrated in silicon-on-insulator platform for lab-on-chip application. The device is designed to operate at an operating wavelength of λ ∼ 1550 nm and its sensitivity is estimated as high as ∼ 931 rad/RIU/mm, which is again linearly scalable with the sensing length. |
| Databáze: | OpenAIRE |
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