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Chin. Phys. B, 2013, Vol. 22(2): 024210    DOI: 10.1088/1674-1056/22/2/024210
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Ultrashort optical pulse shaper based on complex-modulated long-period-grating coupler

Dong Xiao-Wei (董小伟), Liu Wen-Kai (刘文楷)
College of Information Engineering, North China University of Technology, Beijing 100144, China
Abstract  In this paper, we present a novel ultrashort pulse shaper based on complex-modulated long-period-grating coupler (CM-LPGC). Temporal rectangular waveform with 2-ps full width at half maximum (FWHM) is obtained by transforming the input Gaussian pulse. Tolerances of the CM-LPGC-based shaper to various non-ideal excitation conditions and fabricating errors are investigated. Results confirm that CM-LPGC is stable and suitable for optical pulse shaping operation.
Keywords:  ultrafast process      optical pulse shaper      complex-modulated long-period-grating coupler      rectangular waveform  
Received:  23 April 2012      Revised:  29 June 2012      Accepted manuscript online: 
PACS:  42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)  
  42.79.Dj (Gratings)  
  42.83.Et  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61007007 and 61101110); and the Foundation of Beijing Municipal Committee of CPC Organization Department (Grant No.2012D005002000001).
Corresponding Authors:  Dong Xiao-Wei     E-mail:  way7803@163.com

Cite this article: 

Dong Xiao-Wei (董小伟), Liu Wen-Kai (刘文楷) Ultrashort optical pulse shaper based on complex-modulated long-period-grating coupler 2013 Chin. Phys. B 22 024210

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