1. Silicon-on-insulator 90° optical hybrid using 4x4 waveguide couplers with C-band operation;Voigt,2008
2. Photonic Integrated Devices for High Speed Signal Processing and Switching;Shibata,2003
3. http://www.3-edge.de.
4. Design and performance evaluation of 1-by-64 multimode interference power splitter for optical communications
5. Study of the optical properties of passive optical splitters based on MMI and Y-branch approach;Kohler,2012