Frequency Stabilization of Mid-Infrared Difference Frequency Laser by Iodine Molecule Absorption

Mingguo, 孙明国 Sun; Hongliang, 马宏亮 Ma; Wang, Guishi; Lei, 汪磊 Wang; Zhensong, 曹振松 Cao; Wanguo, 梁万国 Liang; Huaixi, 陈怀熹 Chen; Huang, 周煌 Zhou; Xiaolin, 邹小林 Zou; Weidong, 陈卫东 Chen; Xiaoming, 高晓明 Gao

doi:10.3788/cjl201441.0702006

Cited by 2 publications

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“…Thus, the position of laser frequency whether it is in the reference frequency's left or right side can distinguished according to the curve. Then, the offset of laser frequency is set to the servo-feedback-control system to control the length of the cavity for realizing frequency stabilization [9] . This method is a traditional frequency stabilization scheme.…”

Section: Molecular Absorption Harmonic Frequency Stabilizationmentioning

confidence: 99%

The developing condition analysis of semiconductor laser frequency stabilization technology

Yao

Zou

et al. 2018

J. Semicond.

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The frequency stability of free-running semiconductor lasers is influenced by several factors, such as driving current and external operating environment. The frequency stabilization of laser has become an international research hotspot in recent years. This paper reviews active frequency stabilization technologies of laser diodes and elaborates their principles. Based on differences of frequency discrimination curves, these active frequency stabilization technologies are classified into three major types, which are harmonic frequency stabilization, Pound-Drever-Hall (PDH) technology and curve subtraction frequency stabilization. Further, merits and demerits of each technology are compared from aspects of frequency stability and structure complexity. Finally, prospects of frequency stabilization technologies of semiconductor lasers are discussed in detail. Combining several of these methods are future trends, especially the combination of frequency stabilization of F–P cavity. And PID electronic control for optimizing the servo system is generally added in the methods mentioned above.

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Section: Molecular Absorption Harmonic Frequency Stabilizationmentioning

confidence: 99%