Theoretical Analysis and Experimental Research on Coupling Characteristics of Symmetric Single-mode Twin-Core Fiber
According to the coupled-mode theory, the change rules of symmetric single-mode twin-core fibers (TCFs) coupling coefficients versus their structural parameters are discussed. And the optical power in two cores is also analyzed by the coupled-mode theory. It shows that when the structural parameters and the input signal wavelength are fixed, the optical power in two cores is just related to TCF length and has a periodic variation phenomenon. To verify the correctness of the theoretical analysis, some corresponding experiments have been done, and the experimental results match the theoretical analysis very well, which is in error by less than 1 percent. It indicates this kind of symmetric TCF as a single-mode fiber coupler has a good application prospect.
fiber optics single mode twin-core fiber (TCF) coupling coefficient
Jian Peng Lisong Liu Lei Yao
Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044 China Key Laboratory of All Optical Network&Advanced Telecommunication Network, Ministry of Education, Beijing Jiaotong University, Beijing 100044 China
国际会议
武汉
英文
639-642
2010-06-06（万方平台首次上网日期，不代表论文的发表时间）