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| 基于DAVLL技术的半导体激光器稳频装置设计 |
| Frequency stabilization system of diode laser based on DAVLL |
| 投稿时间：2014-05-25 |
| DOI：10.3969/j.issn.1005-5630.2014.06.018 |
| 中文关键词: 激光稳频 塞曼效应 电流源 Cs原子 |
| 英文关键词:laser frequency stabilization Zeeman effect current source Cs atom |
| 基金项目:国家自然科学基金项目(51374072);东北石油大学青年科学基金项目(ky120227) |
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| 中文摘要: |
| 分析了二向色性原子蒸气激光频率锁定(dichroic atomic vapor laser lock,DAVLL)技术稳定激光器频率的原理,并采用DFB894.6 nm半导体激光器和Cs原子气室搭建稳频实验装置。实验测量了不同磁场条件下的DAVLL光谱,发现Cs原子D1线的DAVLL光谱零值点处的斜率随磁场强度增加而增大,但谱线零点斜率不随磁场变化。根据半导体激光器锁频原理设计制作了驱动电路,测试结果表明,该稳频装置的短时频率稳定度达16 MHz。 |
| 英文摘要: |
| The principle of dichroic atomic vapor laser lock (DAVLL) is analyzed. The DFB of 894.6 nm laser diode and Cs vapor cell are used to build experimental system. We measure the DAVLL spectrum at different magnetic fields, and find that the slope of the zero point increases with the magnetic field for Cs D1 transition, but the frequency of the zero point remains unchanged. We design the drive circuit of laser diode according to the principle of frequency locking. The experimental results show that the frequency stability reach 16 MHz in the short term. |
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