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AWG-based devices for a WDM overlay PON

: Przyrembel, G.; Kuhlow, B.

Nolan, D.A.:
WDM components
Washington, DC: OSA, 1999 (OSA trends in optics and photonic series 29)
ISBN: 1-557-52610-9
Book Article
Fraunhofer HHI ()
broadcast channels; diffraction gratings; multiplexing equipment; optical arrays; optical communication equipment; optical fibre networks; optical planar waveguides; optical waveguide components; reviews; wavelength division multiplexing; wdm overlay passive optical network; overview; arrayed waveguide grating-based devices; power-splitting passive optical network; wavelength band; wdm comb; broadcast wavelengths; silica technology; wdm band; power split broadcast signal; arrayed waveguide grating; power splitter; 1.55 mum; 200 GHz; 1.31 mum; 1.5 mum; sio2

An 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.