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Optical Engineering

Optical temporal differentiator using a twin-core fiber
Author(s): Haidong You; Tigang Ning; Wei Jian; Li Pei; Xiaodong Wen; Jing Li; Hongyao Chen
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Paper Abstract

Twin-core fiber (TCF) can provide the required spectral response for implementing an optical temporal differentiator. It is shown that the output temporal waveform from one core of the TCF providing full energy coupling is proportional to the first derivative of the optical temporal signal launched at the input. Moreover, TCF can also be used as the first order optical temporal differentiator for multiwavelength optical signals, in which the position and the number of central wavelength can be tunable simply by changing the fiber length. Our numerical results confirmed that the TCF has a good accuracy by calculating the first time derivatives of the input optical signals with temporal features in the picosecond and subpicosecond ranges.

Paper Details

Date Published: 7 January 2013
PDF: 7 pages
Opt. Eng. 52(1) 015005 doi: 10.1117/1.OE.52.1.015005
Published in: Optical Engineering Volume 52, Issue 1
Show Author Affiliations
Haidong You, Beijing Jiaotong Univ. (China)
Tigang Ning, Beijing Jiaotong Univ. (China)
Wei Jian, Beijing Jiaotong Univ. (China)
Li Pei, Beijing Jiaotong Univ. (China)
Xiaodong Wen, Beijing Jiaotong Univ. (China)
Jing Li, Beijing Jiaotong Univ. (China)
Hongyao Chen, Beijing Jiaotong Univ. (China)


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