Nonlinear output response of acousto-optic modulated distributed bragg reflector (DBR) fiber laser

Lai, M.H. and Islam, M.R. and Lim, K.S. and Fang, S.D. and Yang, H.Z. and Qiao, X.G. and Ahmad, Harith (2016) Nonlinear output response of acousto-optic modulated distributed bragg reflector (DBR) fiber laser. Optoelectronics and Advanced Materials, Rapid Communications, 10 (9-10). pp. 611-615. ISSN 1842-6573

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Abstract

This article presents a study on the output response of a distributed Bragg reflector (DBR) to acousto-optic wave. In the fabrication, the DBR is constructed with a 12 cm long EDF and two FBGs that share the same center wavelength. The behavior of the DBR under the influence of acousto-optic wave can be well explained based on the model of a single sinusoidal-modulated FBG. A nonlinear response has been observed for DBR output amplitude which is similar to the reflectivity variation at the center wavelength of an FBG impinged by acousto-optic wave. The potential for using DBR as a vibration sensor has been investigated in the frequency range of 120 kHz-190 kHz.

Item Type: Article
Uncontrolled Keywords: Distributed Bragg reflector (DBR); Acousto-optic wave; FBG; Vibration sensing
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 10 Oct 2017 03:02
Last Modified: 11 Oct 2018 03:21
URI: http://eprints.um.edu.my/id/eprint/17920

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