Optical Gaussian Notch Filter Based on Periodic Microbent Fiber Bragg Grating

Ali, M.M. and Lim, K.S. and Becir, A. and Lai, M.H. and Ahmad, Harith (2014) Optical Gaussian Notch Filter Based on Periodic Microbent Fiber Bragg Grating. IEEE Photonics Journal, 6 (1). ISSN 1943-0655

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Abstract

In this paper, we demonstrated an optical notch filter constructed from a periodic microbent fiber Bragg grating attained by using two copper-wire-wound slabs. In the reflection spectrum, sideband peaks are created as a result of mechanically induced modulation on the grating period, and a higher number of peaks are observed when greater modulation is applied. The peak wavelength spacing depends upon the period of microbending, which can be varied by changing the diameter of the winding wire or the angle of placement of fiber Bragg grating placed in between the two wound slabs. Moreover, the trend of Bragg transmission loss (BTL) for the transmission spectrum changes with the changing of modulation period and amplitude. The proposed technique is very stable, and it can be used as an optical Gaussian notch filter.

Item Type: Article
Uncontrolled Keywords: Refractive index modulation; Periodic microbending; Bragg wavelength; Bragg transmission loss
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Oct 2015 06:39
Last Modified: 11 Oct 2018 02:56
URI: http://eprints.um.edu.my/id/eprint/14339

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