Low-loss pigtail reflector for fiber lasers

作者：Masuda Taizo^*; Iyoda Mitsuhiro; Yasumatsu Yuta; Endo Masamori

来源：Review of Scientific Instruments, 2017, 88(5): 053112.

DOI：10.1063/1.4983924

We demonstrate a low-loss pigtail reflector for a fiber laser comprising off-the-shelf components. A pigtail configuration has the advantage of easy alteration of the reflection properties, which is highly desired for basic studies and metrological applications. Our proposed reflector consists of a dielectric-coated bulk mirror and an Ferrule connector (FC)-type fiber receptacle, which are fixed with a machined holder such that the FC-type connector at the fiber end can be attached onto the mirror surface with an appropriate amount of pressure, which is essential for minimal reflection loss. The measured reflection loss is 0.07 dB, which is one order of magnitude less than that of the typical connection loss, 0.52 dB, of an FC-FC interconnection; it is comparable to the typical splice loss of a single-mode fiber (0.05 dB). The benefit of the proposed method is its versatility that enables its application to various types of fiber lasers. Published by AIP Publishing.

• 出版日期2017-5