Theoretical investigation of an optical fiber amplifier loop for intra-cavity and ring-down cavity gas sensing
| Autor: | Gang-Ding Peng, Yuyao Wang, Wencai Jing, Yongning Zhang, Tonghui Liu, Dongfang Jia, Huiyun Zhang, Junfeng Jiang, Ke-Ke Liu |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
business.industry Metals and Alloys Physics::Optics Rate equation Condensed Matter Physics Action (physics) Surfaces Coatings and Films Electronic Optical and Magnetic Materials Power (physics) Loop (topology) Optical fiber amplifiers Optics Materials Chemistry Ring down Sensitivity limit Sensitivity (control systems) Electrical and Electronic Engineering business Instrumentation |
| Zdroj: | Sensors and Actuators B: Chemical. 146:116-121 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2010.02.041 |
| Popis: | An optical fiber amplifier loop (OFAL) for intra-cavity and ring-down cavity gas sensing is proposed in this paper. The action of the OFAL is investigated theoretically. A uniform model of the system is established using rate equations, from which the sensitivity enhancement factor can be obtained. Based on the model, the effects of pump power and system loss on the performance of the OFAL are deeply researched. At the same time, the expressions of the sensitivity for intra-cavity and ring-down cavity are deduced and discussed respectively. And the simulation of the sensitivities depending on the pump power and system loss is realized, which leads to the theoretical values of the system sensitivity limit. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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