| External cavity diode laser around 657 nm |
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| 作者姓名： | 吕德胜 黄凯凯 王凤芝 杨东海 |
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| 作者单位： | Institute of Electronics and Computer Science，Peking University，Key Laboratory for Quantum Information and Measurement，MOE China，Beijing 100871，Institute of Electronics and Computer Science，Peking University，Key Laboratory for Quantum Information and Measurement，MOE China，Beijing 100871，Institute of Electronics and Computer Science，Peking University，Key Laboratory for Quantum Information and Measurement，MOE China，Beijing 100871，Institute of Electronics and Computer Science，Peking University，Key Laboratory for Quantum Information and Measurement，MOE China，Beijing 100871 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China under Grant No. 60178016. |
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| 摘 要： | Operating a laser diode in an external cavity, which provides frequency-selective feedback, is a very effective method to tune the laser frequency to a range far from its free running frequency. For the Ca atomic Ramsey spectroscopy experiment, we have constructed a 657-nm laser system based on the Littman-Metcalf configuration with a 660-nm commercial laser diode. Continuously 10-GHz tuning range was achieved with about 100-kHz spectral linewidth, measured with beat-note spectrum of two identical laser systems.
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External cavity diode laser around 657 nm |
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| Abstract: | Operating a laser diode in an external cavity, which provides frequency-selective feedback, is a very effective method to tune the laser frequency to a range far from its free running frequency. For the Ca atomic Ramsey spectroscopy experiment, we have constructed a 657-nm laser system based on the LittmanMetcalf configuration with a 660-nm commercial laser diode. Continuously 10-GHz tuning range was achieved with about 100-kHz spectral linewidth, measured with beat-note spectrum of two identical laser systems. |
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