Results 241 to 250 of about 8,069 (285)
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Analysis of chirped-sampled and sampled-chirped fiber Bragg gratings
Applied Optics, 2002We analyze sampled fiber Bragg gratings that have chirp in the grating period, in the sampling function, or in both. In the last-named case the sampling period can be chirped, the sample length can be chirped, or both. We explain the features in the spectral and group-delay (dispersion) responses for gratings that have a single chirp parameter. We then
Chin-Hua, Wang +2 more
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Chirped-sampled and sampled-chirped fiber Bragg gratings
Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, 2001We analyze sampled Bragg gratings having chirp in either the grating period and/or sampling function [sampling period or sample length]. The response of sampled gratings having multiple chirped parameters can be explained in terms of the single chirped parameter cases.
C.-H. Wang, L. R. Chen, P. W. E. Smith
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Introduction to Chirp Concepts with a Cheap Chirp Radar
American Journal of Physics, 1973The elements of pulse compression of a chirp in a dispersive delay are reviewed and chirp and pulse modes are contrasted. A simple microwave Doppler-shift apparatus is modified info a chirp system to permit distance measurement in a laboratory experiment that is rich in fundamental concepts of physical parameters which are related by the Fourier ...
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Proceedings of the 37th SIGCSE technical symposium on Computer science education, 2006
Traditionally, the topics of compiler construction and language processing have been taught as an elective course in Computer Science curricula. As such, students may graduate with little understanding or experience with the useful techniques embodied in modern compiler construction.In this paper, we present the design of Chirp
Li Xu, Fred G. Martin
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Traditionally, the topics of compiler construction and language processing have been taught as an elective course in Computer Science curricula. As such, students may graduate with little understanding or experience with the useful techniques embodied in modern compiler construction.In this paper, we present the design of Chirp
Li Xu, Fred G. Martin
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Optical orthogonal chirp division multiplexing with chirp index modulation
Optics LettersWe propose and experimentally demonstrate a modulation technique, termed orthogonal chirp division multiplexing with chirp index modulation (OCDM-CIM), where partial chirps are deliberately unmodulated to reduce interference and energy consumption. OCDM-CIM exhibits the combined advantages of interference rejection from the chirp-spread spectrum in ...
Kunping Luo +5 more
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Optics Communications, 2006
The design of fiber Bragg grating to achieve different chirp amount in the selective transmission channel is presented. The method depends on the combination effect of introduced equivalent chirp with the linearly inherent chirp provided by the phase mask. Since these two chirps can be incorporated, or be counteracted, the different chirp amount can be
Li Xia, Ping Shum, Chao Lu
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The design of fiber Bragg grating to achieve different chirp amount in the selective transmission channel is presented. The method depends on the combination effect of introduced equivalent chirp with the linearly inherent chirp provided by the phase mask. Since these two chirps can be incorporated, or be counteracted, the different chirp amount can be
Li Xia, Ping Shum, Chao Lu
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Chirp elimination using a linearly chirped fiber grating
Optical and Quantum Electronics, 2001Gain-switched distributed feedback laser diodes (GS-DFB-LD) with high repetition bit rate have large frequency chirp. Conventionally, the F–P spectrum filter and normal dispersion fiber were used to eliminate chirp in GS-DFB-LD pulse sources. In this paper, a new method for eliminating chirp of high repetition pulses generated from DFB laser diodes is ...
Xiaoguang Zhang +3 more
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Directly Chirped Laser Source for Chirped-Pulse Amplification
Lasers, Sources and Related Photonic Devices, 2010A programmable, all-fiber, chirped-pulse seed laser system based on direct phase modulation produces 2.5-ns optical pulses with 0.78-nm bandwidth centered at 1053 nm that are suitable for chirped-pulse amplification.
R. Xin, J. D. Zuegel
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Chirp cyclic moment for chirp cyclostationary processes: Definitions and estimators
Digital Signal Processing, 2023Hongxia Miao, Feng Zhang 0011
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2008
Caleb Plummer and his Blind Daughter lived all alone by themselves, as the Story-books say—and my blessing, with yours to back it I hope, on the Story-books, for saying anything in this workaday world!—Caleb Plummer and his Blind Daughter lived all alone by themselves,...
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Caleb Plummer and his Blind Daughter lived all alone by themselves, as the Story-books say—and my blessing, with yours to back it I hope, on the Story-books, for saying anything in this workaday world!—Caleb Plummer and his Blind Daughter lived all alone by themselves,...
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