A novel NLFM waveform generator using tunable integrated optical ring resonators: simulation and proof of concept experiment

D. B Adams; W. T. Snider; C. K. Madsen

doi:10.1117/12.850362

29 April 2010 A novel NLFM waveform generator using tunable integrated optical ring resonators: simulation and proof of concept experiment

D. B Adams, W. T. Snider, C. K. Madsen

Author Affiliations +

Proceedings Volume 7684, Laser Radar Technology and Applications XV; 76841A (2010) https://doi.org/10.1117/12.850362
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

The NLFM waveform resulting from a tunable integrated optical ring resonator is simulated and compared with the well known tan-FM waveform. The metrics of interest are the first sidelobe levels and FWHM times of the autocorrelation, as these directly relate to the long-range performance and fine range resolution of a LADAR system, and should ideally be as small as possible. Through simulation, the sidelobe level of the autocorrelation of an NLFM waveform generated by a series of tunable integrated optical ring resonators is shown to be lower than the autocorrelation sidelobe level of an equivalent optimized tan-FM waveform with an equal FWHM time. A proof of concept experiment employing thermally tunable Silicon Nitride integrated optical ring resonator is shown to generate NLFM chirped waveforms with frequency chirps of 28 kHz.

Citation Download Citation

D. B Adams, W. T. Snider, and C. K. Madsen "A novel NLFM waveform generator using tunable integrated optical ring resonators: simulation and proof of concept experiment", Proc. SPIE 7684, Laser Radar Technology and Applications XV, 76841A (29 April 2010); https://doi.org/10.1117/12.850362

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