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Modulation fading in temporal Talbot effect

Xing, Junna, Wang, Chao, Chi, Hao, Yu, Xianbin, Zheng, Shilie, Jin, Xiaofeng, Zhang, Xianmin (2018) Modulation fading in temporal Talbot effect. IEEE Photonics Technology Letters, 30 (15). pp. 1376-1379. ISSN 1041-1135. (doi:10.1109/LPT.2018.2848634) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:67268)

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Temporal Talbot phenomenon is the time-domain counterpart of the well-known spatial Talbot phenomenon, which can be used to compress/expand input pulses or multiply the pulse repetition rate. It is of great interest to study the temporal Talbot effect with modulation due to its potential applications in information transmission, in which the envelope of the input pulse sequence is modulated by a signal. In this letter, we report the modulation fading phenomenon in the temporal Talbot effect, i. e. the phenomenon that the modulation depth degrades with the increase of the order of the Talbot effect, for the first time to our knowledge. Distinct from the attenuation caused by the fiber loss, the modulation fading relates to the pulse width, the repetition period of the pulse sequence, and the frequency of the modulating signal as well as the order of the Talbot effect. A fully analytical expression of the modulation transfer function is presented to explain this phenomenon. Potential application of the modulation fading in temporal cloaking is discussed.

Item Type: Article
DOI/Identification number: 10.1109/LPT.2018.2848634
Uncontrolled keywords: Temporal Talbot phenomenon, self-imaging effect, modulation fading, temporal cloaking
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK5101 Telecommunications > TK5103.59 Optical communications
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Chao Wang
Date Deposited: 11 Jun 2018 14:25 UTC
Last Modified: 16 Feb 2021 13:55 UTC
Resource URI: (The current URI for this page, for reference purposes)
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