Abstract
Underwater applications of the lidar-radar impose the use of blue-green emitters [1-2]. Lidar-radar is based on an optically-carried radiofrequency (RF) signal in order to benefit from both the directivity of the optical beam (lidar), and the accuracy of RF signal processing (radar). It was shown recently that a non-resonant frequency-shifted feedback allows generating a RF-modulated pulse train from a Q-switched laser without any electronics feedback loop. The RF modulation reproduces the spectral quality of the synthesizer, leading to phase coherence over thousands of successive pulses [3].
© 2015 IEEE
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