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

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2012,（6）
• 页码范围: 418-421
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11801-012-2286-6

摘要

We propose a novel-all-optical buffer and shaper based on the adjustable power transferring characteristics of the complexmodulated 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.