›› 2015, Vol. 24 ›› Issue (1): 14214-014214.doi: 10.1088/1674-1056/24/1/014214
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
陈耀飞a, 韩群a, 刘铁根a b
Chen Yao-Fei (陈耀飞)a, Han Qun (韩群)a, Liu Tie-Gen (刘铁根)a b
摘要: An all-fiber optical modulator, which is composed of a piece of no-core fiber spliced between two sections of single-mode fibers and uses magnetic fluid (MF) as the cladding of the no-core fiber section, is proposed and investigated experimentally. Due to the tunable refractive index and absorption coefficient of MF, the output intensity can be modulated by controlling an applied magnetic field. The dependences of the modulator's temporal response on the working wavelength, the magnetic field strength (H), and the MF's concentration are investigated experimentally. The results are explained qualitatively by the dynamic response process of MF under the action of a magnetic field. The findings are helpful for optimizing this kind of modulator.
中图分类号: (Fiber optics)