@article{SeyringerSagmeisterMaeseNovoetal.2020, author = {Dana Seyringer and Martin Sagmeister and Alejandro Maese-Novo and Moritz Eggeling and Elisabet A. Rank and Paul Muellner and Rainer Hainberger and Wolfgang Drexler and Marko Vlaskovic and Horst Zimmermann and Gerald Meinhardt and Jochen Kraft}, title = {Technological verification of size-optimized 160-channel silicon nitride-based AWG-spectrometer for medical applications}, series = {Applied Physics B}, volume = {125. Jg.}, number = {H. 6}, doi = {10.1007/s00340-019-7192-1}, year = {2020}, abstract = {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.}, language = {en} }