Journal
OPTICS COMMUNICATIONS
Volume 313, Issue -, Pages 85-89Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2013.09.065
Keywords
Integrated optics; Filter; Microwave photonics; Stimulated Brillouin scattering; SBS; Chalcogenide glass
Categories
Funding
- Australian Research Council (ARC) through its Discovery grant [DP1096838]
- Federation Fellowship [FF0776056]
- Center of Excellence CUDOS [CE110001018]
- Future Fellowship [1-1110100853]
- Laureate Fellowship [FL120100029]
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We report the first demonstration of a tunable microwave photonic notch filter based on stimulated Brillouin scattering (SBS) in a photonic chip. Single-sideband with carrier modulation (SSB+C) scheme was used to map the SBS loss spectrum into a frequency notch in the RF domain. The notch frequency can be tuned by modulating the SSB+C signal onto a tunable carrier, which was generated by means of SSB suppressed carrier (SSB-SC) modulation. The notch filter has a high resolution with 3-dB and 6-dB bandwidths of 126 MHz and 78 MHz, respectively. The filter has a notch depth of 20 dB, and the notch frequency can be continuously tuned over a range of 2-8 GHz, which is limited only by the current measurement setup. (c) 2013 Elsevier BM. All rights reserved
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