Four-bit all-optical quantization based on Raman self-frequency shift and spectral compression

被引：0

作者：

Liang R. ^{[1
]}

Zhou X.-J. ^{[1
,2
]}

Zhang Z.-Y. ^{[1
]}

Li H.-P. ^{[1
,2
]}

Liu Y. ^{[1
,2
]}

机构：

[1] School of Optoelectronic Information, University of Electronic Science and Technology of China

[2] Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks, Ministry of Education, University of Electronic Science and Technology of China

来源：

Optoelectronics Letters | 2009年 / 5卷 / 06期

基金：

中国国家自然科学基金;

关键词：

16;

D O I：

10.1007/s11801-009-9108-5

中图分类号：

学科分类号：

摘要：

An all-optical quantization based on Raman self-frequency shift (RSFS) in a photonic crystal fiber (PCF) and spectral compression in a dispersion-increasing fiber (DIF) is analyzed, and the evolution of femtosecond pulse in fibers is described by numerically solving the generalized nonlinear Schrödinge equation (GNLSE). Gaussian pulse with the width of 300 fs and center wavelength of 1550 nm is injected into 15 m-long PCF and 100 m-long DIF. The simulation results show that the center wavelength increases linearly with the input peak power which changes from 110 W to 165 W. The RSFS of 65. 3 nm and maximal spectral compression ratio of 3. 38 can be obtained. The resolution of the quantization is improved from 2. 4 bits to 4 bits by using the spectral compression in the DIF. © 2009 Tianjin University of Technology and Springer Berlin Heidelberg.

引用

页码：437 / 440

页数：3

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