@ARTICLE{Kumar_A._All_2016,
 author={Kumar, A. and Priye, V. and Raj Singh, R.},
 volume={vol. 24},
 number={No 4},
 journal={Opto-Electronics Review},
 pages={191-195},
 howpublished={online},
 year={2016},
 publisher={Polish Academy of Sciences (under the auspices of the Committee on Electronics and Telecommunication) and Association of Polish Electrical Engineers in cooperation with Military University of Technology},
 abstract={A novel all optical measurement scheme is proposed to measure wideband microwave frequencies up to 30 GHz. The proposed method is based on a four-wave mixing (FWM) approach in a semiconductor optical amplifier (SOA) of both even order side-bands generated by an unknown microwave frequency modulating an optical carrier. The optical power of a generated FWM signal depends on frequency spacing between extracted side-bands. A mathematical relation is established between FWM power and frequency of an unknown signal. A calibration curve is drawn based on the mathematical relation which predicts the unknown frequency from power withdrawn after FWM},
 type={Article},
 title={All optical measurement of an unknown wideband microwave frequency},
 URL={http://www.journals.pan.pl/Content/116106/PDF-MASTER/pan_doi_blank.pdf},
 keywords={unknown frequency measurement, optical device, Mach-Zehnder modulator, semiconductor optical amplifier, four-wave mixing},
}