Optical system design of a portable coherent population trapping (CPT) atom clock
| Autor: | Shi Fan, Wang Nuanrang, Nian Feng, Zhao Huan, Zhang Zhenwei, Cui Yongshun, Feng Keming, Zhang Shengkang, Yang Renfu |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Physics
education.field_of_study business.industry Population Physics::Optics Laser pumping Chip Laser Atomic and Molecular Physics and Optics Atomic clock Electronic Optical and Magnetic Materials Transverse mode law.invention Computer Science::Hardware Architecture Optics Gate array law Digital control Physics::Atomic Physics Electrical and Electronic Engineering business education |
| Zdroj: | Chinese Optics Letters. 12:S22205 |
| ISSN: | 1671-7694 |
| Popis: | We present the mechanism of coherent population trapping (CPT) atom clock. The optical system is designed for a portable CPT atom clock. In this system, single transverse mode vertical-cavity surface-emitting laser is used as a miniature pump laser. The driven circuit is designed based on a field-programmable gate array full digital control system and special-purpose chip MAX1968. The experimental results show that the optical system can provide circularly polarized light, and has small volume and low power consumption. These indi-cate that the optical system is a promising candidate for a portable CPT atom clock engineering prototype. |
| Databáze: | OpenAIRE |
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