Refine
Document Type
- Conference Proceeding (7)
- Article (4)
Institute
Language
- English (11)
Is part of the Bibliography
- yes (11)
Keywords
- Arrayed waveguide gratings (3)
- OCT (3)
- AWG (2)
- Optical coherence tomography (2)
- AWG-parameters tool (1)
- AWG-spectrometer (1)
- CMOS-Compatible (1)
- Couplers (1)
- Crosstalk (1)
- Industry (1)
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.