Laser frequency locking with subnatural linewidth spectroscopy
| Autor: | Gao-xiang Li, Guoqing Yang, Shang-qing Liang, Qi Yu, Guang-ming Huang, Xu-xing Geng, Yifu Zhu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Absorption spectroscopy business.industry Physics::Optics chemistry.chemical_element Statistical and Nonlinear Physics Laser 01 natural sciences Atomic and Molecular Physics and Optics Rubidium law.invention 010309 optics Laser linewidth Optics chemistry law 0103 physical sciences Physics::Atomic Physics Laser frequency business Spectroscopy Enhanced absorption Beam (structure) |
| Zdroj: | Journal of the Optical Society of America B. 37:574 |
| ISSN: | 1520-8540 0740-3224 |
| DOI: | 10.1364/josab.380337 |
| Popis: | We demonstrate a simple technique to lock the frequency of a laser to an atomic transition with a new technique of subnatural linewidth spectroscopy. The coupled rubidium system exhibits an enhanced absorption spectrum of the probe beam with a subnatural linewidth. Compared with other techniques with an additional laser, our scheme only utilizes a single laser, which will be locked. The observed spectroscopic linewidth is down to about 3.5 MHz. The laser frequency fluctuation is about 226 kHz after locking on. The demonstrated scheme offers a convenient and low-cost technique for laser frequency stabilization and related precision measurements. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|