Archive > Volume 11 Issue 2 > 2015,11(2):100-102. DOI:10.1007/s11801-015-5016-z CSTR:[cstr] Prev Next
Optical pulse shaping based on a double-phase-shifted fiber Bragg grating
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Abstract:
Based on the transfer matrix method, a detailed theoretical and numerical study on double-phase-shifted fiber Bragg grating (FBG) is investigated. Temporal responses of the double-phase-shifted FBG to optical pulse are analyzed and the influence of the two phase-shifts’ position on the reflected output pulse is evaluated. Results demonstrate that very different temporal pulse waveforms can be achieved by adjusting the length ratio (α=L2/L1). Specifically, a transform-limited Gaussian input optical pulse can be shaped into flat-top square pulse (α=1.81) or two identical optical pulse sequences (α=1.93).
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This work has been supported by the Foundation of Beijing Municipal Committee of CPC Organization Department (No.2012D005002000001), the Talents of North China University of Technology (No.CCXZ201307) and the Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions (No.CIT&TCD201304001).
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