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Proceedings Paper

All-optical high-speed sampling based on nonlinear polarization rotation in a semiconductor optical amplifier
Author(s): Q. S. Zhang; S. J. Zhang; L. Huang; X. G. Tang; H. P. Li; Y. Liu; Y. Z. Liu
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Paper Abstract

A novel all-optical high speed sampling method using nonlinear polarization rotation (NPR) in a semiconductor optical amplifier (SOA) is proposed in this paper. Using the carrier rate equation in a SOA for the propagation of an optical pulse, a model is proposed to describe the relationship between the polarization rotating angles of probe light and the pump light power. Meantime, affection introduced by the initial polarization of the probe light, as well as the injected current of the SOA is studied. The numerical results indicated that the initial polarization of the probe light affects the transfer curve between the output light power of probe light and the pump light power, and the injected current of SOA could affect the linearly dynamic range and the rise slope of the transfer curve. In order to obtain suitable slope and larger linear dynamic range, the parameters are optimized. The primarily simulated results indicated that the pump light power is not more than 1mW. It is also shown that the all-optical sampling mentioned in this paper has promoting potential to improve the sampling rate at hundreds GS/s and needs considerable lower optical power than others.

Paper Details

Date Published: 8 January 2008
PDF: 8 pages
Proc. SPIE 6838, Optoelectronic Devices and Integration II, 68381L (8 January 2008); doi: 10.1117/12.755206
Show Author Affiliations
Q. S. Zhang, Univ. of Electronic Science and Technology of China (China)
China West Normal Univ. (China)
S. J. Zhang, Univ. of Electronic Science and Technology of China (China)
L. Huang, Univ. of Electronic Science and Technology of China (China)
X. G. Tang, Univ. of Electronic Science and Technology of China (China)
H. P. Li, Univ. of Electronic Science and Technology of China (China)
Y. Liu, Univ. of Electronic Science and Technology of China (China)
Y. Z. Liu, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 6838:
Optoelectronic Devices and Integration II
Xuping Zhang; Hai Ming; Maggie Yihong Chen, Editor(s)

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