Álvarez-Tamayo R I, Durán-Sánchez M, Pottiez O, Kuzin E A, Ibarra-Escamilla B, Flores-Rosas A
Benemérita Universidad Autónoma de Puebla Facultad de Ciencias Fisico-Matematicas, Av. San Claudio y 22 Sur, Puebla, Puebla 72000, Mexico.
Appl Opt. 2011 Jan 20;50(3):253-60. doi: 10.1364/AO.50.000253.
We present detailed investigations of the spectral dependencies of the transmission of a fiber optical loop mirror (FOLM) consisting of a coupler with output ports spliced at arbitrary angles to a high-birefringence (Hi-Bi) fiber. The application for dual-wavelength lasers is discussed. For this aim, the spectral dependence of the reflection is tuned by the temperature of the Hi-Bi fiber that allows a fine adjustment of the cavity loss for generated wavelengths. The ratio between maximum and minimum reflection can be adjusted by the twist angle of the fiber at the splices, which also provides useful possibilities for the adjustment of cavity losses. We used the twist and temperature variation of the Hi-Bi fiber to change the operation from single wavelength to stable dual-wavelength generation with either equal or unequal powers of wavelengths.
我们详细研究了一种光纤环形镜（FOLM）的传输光谱依赖性，该光纤环形镜由一个耦合器组成，其输出端口以任意角度熔接到一根高双折射（Hi-Bi）光纤上。讨论了其在双波长激光器中的应用。为此，通过Hi-Bi光纤的温度来调节反射的光谱依赖性，这使得能够对产生波长的腔损耗进行精细调节。最大反射与最小反射之比可通过熔接处光纤的扭转角来调节，这也为调节腔损耗提供了有用的可能性。我们利用Hi-Bi光纤的扭转和温度变化，将操作从单波长转换为具有相等或不相等波长功率的稳定双波长产生。
