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Title of Journal: Opt Quant Electron

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Abbravation: Optical and Quantum Electronics

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Springer US

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DOI

10.1016/0025-5408(82)90150-7

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1572-817X

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Ultranarrow band optical comb filter using Gaussi

Authors: Somnath Sengupta S K Ghorai
Publish Date: 2016/10/05
Volume: 48, Issue: 10, Pages: 482-
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Abstract

An efficient design of ultranarrowband optical comb filter based on the combined effect of Gaussian sampling and periodic chirp is proposed and numerically demonstrated The spectral Talbot effect is utilized in the Gaussiansampledperiodicallychirped fiber Bragg grating It has been seen through our simulation that the channel counts or inchannel bandwidth can be controlled using the apodization with a Gaussian sampling function of the grating structure and the chirp coefficient High reflectivity as well as very narrow channel width has been obtained using low refractive index modulation of the grating samples In the proposed design a high performance ultranarrowband comb filter with inchannel bandwidth in the range of 27 GHz to 450 MHz has been realized

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