| Frequency-locked tunable LD laser with a broad bandwidth |
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| 作者姓名： | 常宏 武海斌 谢常德 王海 |
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| 作者单位： | The State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-Electronics，Shanxi University，Taiyuan 030006，The State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-Electronics，Shanxi University，Taiyuan 030006，The State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-Electronics，Shanxi University，Taiyuan 030006，The State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-Electronics，Shanxi University，Taiyuan 030006 |
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| 基金项目： | ThisworkwassupportedbytheNationalNaturalScienceFoundationofChina(No.19974021,60238010,and60325414)
theNaturalScienceFoundationofShanxiProvince(No.20031007,20011030)
theShanxiReturnedScholarFoundation. |
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| 摘 要： | Using lock-in amplifer and proportional, integral, and derivative (PID) electric circuit, the frequency of diode laser is stabilized on a highly mechanical stable Fabry-Perot (FP) cavity transmission peak. When the frequency locking system is on, the frequency tunable range of the laser is about 4 GHz around the D1 transition of Rb. The laser frequency tuning is implemented by scanning the FP cavity length. The fluctuation of frequency of the output laser is less than 1 MHz, and the drift of the center frequency is less than 1.5 MHz in 1.5 min. This system has great potential of the application in the experimental investigation of the interaction between light and atoms, especially, for the case of far off the atomic resonance.
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