掺铒光纤超荧光光源平均波长温度稳定性实验研究

研究了掺铒光纤超荧光光源平均波长温度稳定性与光源结构和泵浦功率的关系,分析了不同结构和泵浦功率情况下平均波长随温度变化的原因.通过改变光源的结构和泵浦功率,改善了光源的输出光谱形状和吸收发射特性,从而改善了平均波长的温度稳定性.满足一定参量条件的双程后向结构光源,平均波长全温稳定性可达到1 ppm/℃,比目前实测的10 ppm/℃高将近10倍,且输出功率高而稳定.

Experimentally Research on Temperature Stability of the Mean Wavelength of Erbium-Doped Fiber Super Fluorescent Source

The relationship between the temperature stability and the source configuration and pump power is investigated.With different configurations and pump power,the mean wavelength temperature stability of different sources are distinguishing, and the reasons of the difference are discussed.By altering the erbium-doped fiber length and pump power,the spectrum and the absorption-emission property of the source is improved. And consequently,the temperature stability of the mean wavelength is ameliorated also.With proper erbium-doped fiber length and pump power,the double passed backward erbium-doped super fluorescent source can output stable spectrum whose mean wavelength temperature stability is better than 1 ppm/℃.It is ten times higher than the measured stability of actual light source.At the same time, the output power of this kind of source is more stable and higher.