Abstract
Optical fibre devices such as tuneable filters and modulators have important applications in optical communications, wavelength division multiplexing and sensing. Moreover, optical fibre Long Period Gratings (LPGs) have been utilized in the past for the development of such optical devices, mainly due to their enhanced sensitivity to changes in the ambient outcladding refractive index [1]. Herein we present results on the spectral tuning of LPGs utilising Ferrofluidic liquids. Ferrofluid is a stable colloidal suspension of sub-domain magnetic particles in a liquid carrier [2]. In the present work the magnetic fluid acts as the ambient material at the position of the LPG thus modification in the optical characteristics of the fluid will result in tuning of the LPG. The LPGs were initially inscribed in B-doped germanosilicate fiber utilizing KrF excimer laser radiation and an amplitude mask resulting in gratings exhibiting a number of attenuation bands in the region 1300-1700 nm with the most dominant measured near 1585 nm.
© 2009 IEEE
PDF ArticleMore Like This
Nancy Meng Ying Zhang, Xinyong Dong, Perry Ping Shum, Dora Juan Juan Hu, Haibin Su, Wen Siang Lew, and Lei Wei
27F2_3 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2015
Hajime Sakata, Kosuke Yamahata, and Kouji Wakamiya
CI_4_4 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2013
O. Frazao, R. Falate, J. L. Fabris, J. L. Santos, L. A. Ferreira, and F. M. Araujo
ThE86 Optical Fiber Sensors (OFS) 2006