Title :
Ultra-Wideband Microwave-Photonic Noise Radar Based on Optical Waveform Generation
Author :
Grodensky, Daniel ; Kravitz, Daniel ; Zadok, Avi
Author_Institution :
Fac. of Eng., Bar-llan Univ., Ramat-Gan, Israel
fDate :
5/15/2012 12:00:00 AM
Abstract :
A microwave-photonic ultra-wideband (UWB) noise radar system is proposed and demonstrated. The system brings together photonic generation of UWB waveforms and fiber-optic distribution. The UWB noise waveform is generated using the amplified spontaneous emission that is associated with either stimulated Brillouin scattering in a standard optical fiber, or with erbium-doped fiber amplification. Waveforms of more than 1-GHz bandwidth and arbitrary radio-frequency carriers are generated, and distributed over 10-km fiber to a remote antenna unit. Laboratory experiments demonstrate ranging measurements with 10-cm resolution.
Keywords :
microwave photonics; optical radar; radio-over-fibre; stimulated Brillouin scattering; superradiance; ultra wideband radar; UWB noise waveform; UWB waveforms; amplified spontaneous emission; arbitrary radio-frequency carriers; distance 10 km; erbium-doped fiber amplification; fiber-optic distribution; optical waveform generation; photonic generation; remote antenna unit; standard optical fiber; stimulated Brillouin scattering; ultra-wideband microwave-photonic noise radar; Microwave amplifiers; Microwave photonics; Noise; Optical fibers; Optical noise; Radar antennas; Ultra wideband technology; Antenna remoting; broadband radar; microwave-photonics; nonlinear fiber-optics; stimulated Brillouin scattering; ultra-wideband communication;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2188889
