All-fiber optical modulator based on no-core fiber and magnetic fluid as cladding

doi:10.1088/1674-1056/24/1/014214

Abstract 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.

Keywords: optical fiber optical modulator no-core fiber magnetic fluid

Received: 06 May 2014
Revised: 16 June 2014
Accepted manuscript online:

PACS:	42.81.-i	(Fiber optics)
	42.81.Qb	(Fiber waveguides, couplers, and arrays)
	75.50.Mm	(Magnetic liquids)

Fund: Project supported by the Natural Science Foundation of Tianjin City, China (Grant No. 13JCYBJC16100), the National Natural Science Foundation of China (Grant No. 61107035), the National Key Scientific Instrument and Equipment Development Project of China (Grant No. 2013YQ03091502), and the National Basic Research Program of China (Grant Nos. 2010CB327802 and 2010CB327806).

Corresponding Authors: Han Qun, Liu Tie-Gen
E-mail: hanqun@tju.edu.cn;tgliu@tju.edu.cn

Cite this article:

Chen Yao-Fei (陈耀飞), Han Qun (韩群), Liu Tie-Gen (刘铁根) All-fiber optical modulator based on no-core fiber and magnetic fluid as cladding 2015 Chin. Phys. B 24 014214

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All-fiber optical modulator based on no-core fiber and magnetic fluid as cladding

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