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Technological verification of size-optimized 160-channel silicon nitride-based AWG-spectrometer for medical applications

  • We present the technological verification of a size-optimized 160-channel, 50-GHz silicon nitride-based AWG-spectrometer. The spectrometer was designed for TM-polarized light with a central wavelength of 850 nm applying our proprietary “AWG-Parameters” tool. For the simulations of AWG layout, the WDM PHASAR photonics tool from Optiwave was used. The simulated results show satisfying optical properties of the designed AWG-spectrometer. However, the high-channel count causes a large AWG size with standard design approaches. To solve this problem we designed a special taper enabling the reduction of AWG structure by about 15% while keeping the same optical properties. The AWG design was fabricated and the measured spectra not only confirm the proposed size-reduction but also the improvement of optical properties of the size-optimized AWG.

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Author:Dana Seyringer, Martin Sagmeister, Alejandro Maese-Novo, Moritz Eggeling, Elisabet A. Rank, Paul Muellner, Rainer Hainberger, Wolfgang Drexler, Marko Vlaskovic, Horst Zimmermann, Gerald Meinhardt, Jochen Kraft
Parent Title (English):Applied Physics B
Document Type:Article
Year of publication:2019
Release Date:2020/01/20
Volume:125. Jg.
Issue:H. 6/88
Number og pages:10
Organisationseinheit:Forschung / Forschungszentrum Mikrotechnik
DDC classes:600 Technik, Medizin, angewandte Wissenschaften
Open Access?:ja
Peer review:wiss. Beitrag, peer-reviewed
Publicationlist:Seyringer, Dana
Bibliographie 2019
Licence (German):License LogoCreative Commons - CC BY - International - Attribution- Namensnennung 4.0