All-optical buffer and shaper based on complex-modulated long-period-grating coupler and self-closed fiber loop

作者：Dong Xiao wei^*; Liu Wen kai

来源：Optoelectronics Letters, 2012, 8(6): 418-421.

DOI：10.1007/s11801-012-2286-6

• Fiber loops
• Gaussians
• Long Period Gratings
• Nonreciprocal
• Optical pumps
• Rectangular pulse
• Spectral bandwidth

We propose a novel all-optical buffer and shaper based on the adjustable power transferring characteristics of the complex-modulated long-period-grating coupler (CM-LPGC) and the multiple circulations of the self-closed fiber loop. By turning on the external optical pumps, the signals can be stored by utilizing the nonreciprocal power transferring of the CM-LPGC. When the buffer time is satisfied, the signals can be extracted discretionarily by turning off the external optical pumps. In addition, by controlling the spectral bandwidth of the CM-LPGC, the temporal rectangular pulse can be obtained by reshaping the Gaussian input signal.

• 出版日期2012