Performance optimization of Gaussian apodized fiber Bragg grating filters in WDM systems

Rebola, Joao L.; Cartazo, A.V.T.

doi:10.1109/jlt.2002.800300

Cited by 36 publications

(18 citation statements)

References 17 publications

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“…Since the apodized FBG problem is difficult to calculate, for the sake of simplicity, many published results considered only the coupling between a forward core mode and a backward core mode [4][5][6]. In this paper we consider a total of 25 modes (1 core mode and 24 cladding modes) in CMEs (4)- (7).…”

Section: Resultsmentioning

confidence: 99%

“…Since apodized fiber Bragg gratings (FBGs) have superior filtering performance and high side lobe suppression, apodized FBGs have been widely developed and applied in optical fiber technology Various apodization profiles, such as Gaussian, positive hyperbolic-tangent, quadratic-sine etc. have been studied in literatures [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…The piecewise-uniform approach (PUA) with transfer matrix method (TMM) is a commonly used numerical technique to simulate apodized grating structures by CMT [4][5][6][7]. For traditional PUA, the apodization profile of gratings is discretized into numerous uniform grating sections.…”

Section: Introductionmentioning

confidence: 99%

“…For traditional PUA, the apodization profile of gratings is discretized into numerous uniform grating sections. To reduce the complexity of the problem, a simplified CMT considers only the coupling between a forward core mode and a backward core mode [4][5][6]. In this study, the contra-directional coupling between core modes and cladding modes are considered [14].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Analysis of Apodized Fiber Bragg Gratings Using Coupled Mode Theory

Sun¹,

Liau²,

Kiang³

et al. 2009

PIER

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Abstract-In this paper, the coupled mode theory is used to analyze apodized fiber Bragg gratings (FBGs). Since the profile of gratings varies with the propagation distance, the coupled mode equations (CMEs) of apodized FBGs are solved by the fourth-order Runge-Kutta method (RKM) and piecewise-uniform approach (PUA). We present two discretization techniques of PUA to analyze the apodization profile of gratings. A uniform profile FBG can be expressed as a system

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical Analysis of Apodized Fiber Bragg Gratings Using Coupled Mode Theory

Sun¹,

Liau²,

Kiang³

et al. 2009

PIER

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“…Various apodization profiles are investigated for dispersion compensation and filter applications. [4][5][6] The reflection of wavelength also depends on the strain and temperature. So FBG can be used in sensor technology.…”

Section: Introductionmentioning

confidence: 99%

Simulation and analysis of Gaussian apodized fiber Bragg grating strain sensor

et al. 2012

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In this paper, the performance of various apodization profiles (uniform, hyperbolic tangent and gaussian) for un-chirped Fiber Bragg Grating is investigated. Apodization techniques are used to get optimized reflection spectra with high side lobe suppression. The simulations are done by solving coupled mode equations in MATLAB using transfer matrix method which explains the relationship between the guided modes. The result shows that Gaussian profile suppresses side lobe level much more efficiently than uniform and hyperbolic tangent profiles. Gaussian apodized Fiber Bragg Grating is used to indicate strain by producing wavelength shift. MATLAB and Opti-grating result gives an idea about the efficiency of the suggested scheme to analyze strain measurements by giving a linear response.

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