Raghuwanshi, Sanjeev Kumar and Talabattula, Srinivas (2008) Asymmetric group velocity dispersion and pulse distortion in a uniform fiber Bragg grating. In: Indian Journal of Physics A and Proceedings of the Indian Association for the Cultivation of Science A, 82 (12). pp. 1681-1687.
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In a uniform fiber Bragg grating, if the input signal is a Gaussian pulse the dispersion is zero near center wavelength and becomes appreciable only near the band edges and side lobes of the reflection spectrum. However for chirped Gaussian pulses, group velocity dispersion and the reflected light must become asymmetric. Here the chirped Gaussian pulses can be treated as a symmetric but nonuniform input signal. The present paper describes that for the case of symmetric Gaussian pulse, the group velocity dispersion and pulse distortion remain symmetric however strong the grating may be. On the other hand both tend to be more asymmetric for the case of strong grating while the input signal is symmetric with nonuniform shape.
| Item Type: | Journal Article |
|---|---|
| Publication: | Indian Journal of Physics A and Proceedings of the Indian Association for the Cultivation of Science A |
| Publisher: | Indian Association of Cultivation Science |
| Additional Information: | Copyright of this article belongs to Indian Association of Cultivation Science. |
| Keywords: | Coupled mode theory of fiber Bragg gratings;group velocity dispersion effect;chirped Gaussian pulses. |
| Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
| Date Deposited: | 17 Jun 2009 10:47 |
| Last Modified: | 17 Jun 2009 10:47 |
| URI: | http://eprints.iisc.ac.in/id/eprint/18605 |
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