Recently published in Optics Letters (vol. 40, no. 17, p4154), the photonic filter developed by Alvaro and co-workers in the Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS) delivers 6GHz frequency tuning with 48dB of notch suppression and a 3dB bandwidth of 98MHz. This work represents a key step towards a CMOS-compatible high resolution RF signal processor.

The devices reported in this paper were fabricated at IMEC in Belgium, with final etch steps performed at ANFF-NSW ahead of measurement in CUDOS laboratories at the University of Sydney.

All reports of research which has been enabled by ANFF-NSW should contain the following acknowledgement: ‘This work was performed in part at the NSW Node of the Australian National Fabrication Facility’. Each refereed journal publication containing an appropriate acknowledgement of ANFF-NSW is eligible for an ANFF-NSW Publication Award which comprises $500 worth of ANFF-NSW access. Please contact Dr Linda Macks for further details.