Home / Delay Characteristics of Chirped Fiber Bragg Gratings
It is shown for the first time that the group delay characteristics of chirped fibre Bragg gratings show a symmetry when measured from either direction.
Based on linear-system theory, a method to obtain the total group-delay characteristics of the cascaded chirped fiber Bragg grating (FBG) from the measured group delays of each...
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In this paper, a continuously variable delay line for phased array antennas is presented. The proposed delay line operates at a single wavelength and is based on properly designed linearly chirped fiber
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An encoding/decoding scheme of multi-channel optical code-division multiple-access (OCDMA) system using sampled fiber Bragg gratings (SFBGs) is proposed and
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The proposed method fabricates piecewise stepped-chirp fiber Bragg gratings (FBGs) with arbitrary group delay responses. Two motorized stages control fiber tension during UV exposure to customize
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Simulation results indicated that optimizing pump power distribution, the length of the ytterbium-doped fiber and the wavelength combination can significantly improve the output characteristics.
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A wideband chirped fiber Bragg grating dispersion compensator operating in C band was designed theoretically by numerically solving the coupled mode equations. The effects of grating length and
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Numerical investigation of spectral properties of nonlinearly chirped grating under strain is made. Calculation is performed using Matlab code based on solving the coupled mode equations
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Abstract The group delay dispersion of chirped fiber Bragg gratings written in polarization-maintaining (PM) fiber is measured by launching light in both polarization states and measuring the reflected light
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The deleterious effect of group delay ripples (GDR) on the performance of a chirped fiber Bragg grating used as a stretcher in a chirped pulse
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In an endeavor to elucidate the physical phenomenon of delay ripple-smoothing, we have investigated the influence of apodisation on the group delay characteristics of a chirped grating. It is
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In , photonic FRFT is realized by propagation in a linearly chirped fiber Bragg grating (LCFBG) with dispersion of 13.9 ps/nm.
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In conclusion, chirped fiber Bragg grating sensors and their applications have been reviewed in this work, highlighting their main features, emerging
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A scheme comprising only four optimized linearly chirped fiber Bragg gratings (LCFBGs) is proposed for compensating the dispersion effects in 48 × 20 Gbps DWDM system. Each grating is
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Chirped fiber Bragg gratings Fiber Bragg gratings have emerged as major components for dispersion compensation because of their low loss, small footprint, and low optical nonlinearity. Bragg gratings
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A nonlinearly chirped fiber grating is formed when tension is applied to an etched fiber Bragg grating, whose cross-sectional area''s reciprocal varies
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/ / | Novel interrogation system for fiber Bragg grating sensor array / / / / | Investigation of structural properties of carbon-epoxy composites using fiber-Bragg gratings / / / / / | InAs photodetectors for
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We present the design and development of piece-wise stepped-chirp fiber Bragg gratings (FBGs) with arbitrary group delay responses using a uniform phase mask in a pre-stretched fiber.
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Abstract: A wide-range tunable delayline with long delay time is achieved based on a 50 cm long chirped fiber Bragg grating (FBG) in a nonuniform hybrid fiber.
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Despite the large dispersion, unchirped gratings have symmetrical delay characteristics, so that the dispersion changes sign when detuning from one side of the bandgap to the other . With the
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Highlights • An apodized Chirped Fiber Bragg Grating is presented with different chirp rates to illustrate sensing response for various uniform and non-uniform profiles of temperature and
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It is shown for the first time that the group delay characteristics of chirped fibre Bragg gratings show a symmetry when measured from either direction. It is shown that the dispersion of a
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The sensor incorporates a linearly chirped fiber Bragg grating (LCFBG), with a portion of the grating bonded at both ends and suspended at the center of an elastic hollow structure, while the remaining
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We measure the system impacts due to the amplitude of group-delay (GD) ripple in single and cascaded chirped fiber Bragg gratings (CFBGs). Signals with smaller pulse width result in
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The versatility and unique characteristics of Chirped Fiber Bragg Grating have led to its adoption in various applications, particularly in the fields of optical communications and sensing.
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Abstract An apodized Chirped Fiber Bragg Grating (CFBG) is presented to compute and depict the sensing response for various uniform and non-uniform profiles of the temperature and the
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We report a novel optical delay line that can be implemented using only optical fiber and fiber devices without the need for any bulk-optic devices
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The chirped Bragg grating and the circulator can be replaced by a span of standard optical fiber. We had a brief conference presentation of this method , but here we expand the work and
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Fiber Optics and Optical Communications - Photon statistics of amplified spontaneous emission in a dense wavelength-division multiplexing regime Fiber Optics and Optical Communications - Effect of
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The method is theoretically described, and we analyze the effect of group delay ripples (GDR) on the performance of a stretcher-compressor pair
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