De Leon Israel, Berini Pierre
School of Information Technology and Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario K1N 6N5, Canada.
Rev Sci Instrum. 2011 Mar;82(3):033107. doi: 10.1063/1.3555337.
We describe techniques and an experimental setup to measure the gain and noise characteristics of a long-range surface plasmon-polariton amplifier consisting of a symmetric metallic stripe waveguide incorporating optically pumped dye molecules in the solution as the gain medium. The setup is capable of acquiring absolute power measurements at the amplifier's output over a narrow optical bandwidth. This allows independent characterization of the amplifier's gain via measurements of stimulated emission and via measurements of amplified spontaneous emission (ASE) over a narrow optical bandwidth, both obtained during the same experimental run. In addition, the absolute power measurements of ASE quantify directly the amplifier's noise.
我们描述了用于测量长程表面等离激元极化激元放大器增益和噪声特性的技术及实验装置，该放大器由一个对称金属条纹波导组成，其中包含溶解状态的光泵浦染料分子作为增益介质。该装置能够在窄光带宽上获取放大器输出端的绝对功率测量值。这使得通过在窄光带宽上测量受激辐射以及通过测量放大的自发辐射（ASE）来独立表征放大器的增益，这两种测量都是在同一实验过程中获得的。此外，ASE的绝对功率测量直接量化了放大器的噪声。
