WEI Chun-hua,YAN Shu-hua.Multifunctional radio-frequency generator for cold atom experiments[J].Optoelectronics Letters,2016,12(3):173-177 Multifunctional radio-frequency generator for cold atom experiments Author Name Affiliation WEI Chun-hua  Department of Instrument Science and Technology, College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha 410073, China Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China  YAN Shu-hua  Department of Instrument Science and Technology, College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha 410073, China Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China  Abstract:       We present a low cost radio-frequency (RF) generator suitable for experiments with cold atoms. The RF source achieves a sub-hertz frequency with tunable resolution from 0 MHz to 400 MHz and a maximum output power of 33 dBm. Based on a direct digital synthesizer (DDS) chip, we implement a ramping capability for frequency, amplitude and phase. The system can also operate as an arbitrary waveform generator. By measuring the stability in a duration of 600 s, we find the presented device performs comparably as Agilent33522A in terms of short-term stability. Due to its excellent performance, the RF generator has been already applied to cold atom trapping experiments. Hits: 4089 Download times: 0 View Full Text    Download reader