Przyrembel, G.G.PrzyrembelKuhlow, B.B.Kuhlow2022-03-032022-03-031999https://publica.fraunhofer.de/handle/publica/196333An overview of different approaches is given for overlaying a power-splitting PON in one wavelength band with a WDM comb in another wavelength band. Three versions of such a device for different broadcast wavelengths have been realized in silica technology. Eight channels of a WDM band around 1.55 mu m wavelength with 200 GHz spacing are overlaid on a 1 to 8 power split broadcast signal at either 1.31 pm or 1.50 pm wavelength. The key component is a 2-band MUX device that relies on a specially designed arrayed waveguide grating (AWG) integrated with a 1 to 8 power splitter ahead.enbroadcast channelsdiffraction gratingsmultiplexing equipmentoptical arraysoptical communication equipmentoptical fibre networksoptical planar waveguidesoptical waveguide componentsreviewswavelength division multiplexingwdm overlay passive optical networkoverviewarrayed waveguide grating-based devicespower-splitting passive optical networkwavelength bandwdm combbroadcast wavelengthssilica technologywdm bandpower split broadcast signalarrayed waveguide gratingpower splitter1.55 mum200 GHz1.31 mum1.5 mumsio2621book article