Filter-Free All-Optical UWB Monocycle Generation based on the Semiconductor Optical Amplifier (SOA) Nonlinearities

被引：0
|
作者：
Dong, Jianji [1 ,2 ]
Fu, Songnian [1 ]
Shum, P. [1 ]
Zhang, Xinliang [2 ]
Huang, Dexiu [2 ]
机构：
[1] Nanyang Technol Univ, NTRC, Singapore 637533, Singapore
[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
来源：
2007 6TH INTERNATIONAL CONFERENCE ON INFORMATION, COMMUNICATIONS & SIGNAL PROCESSING, VOLS 1-4 | 2007年
关键词：
ultrawideband (UWB); semiconductor optical amplifier (SOA); cross gain modulation (XGM);
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A filter-free all-optical pump-probe scheme for ultrawideband (UWB) monocycle pulse generation with single semiconductor optical amplifier (SOA) is proposed and demonstrated. A pair of polarity-reversed optical pulses is generated due to cross gain modulation (XGM) in the pump-probe scheme, whereas the amplified pump pulse becomes sharp in its leading edge such that the power peak is shifted forward. Hence, the combination of the pump and probe signals at the SOA output is directly monocycle-like. Our scheme is an novel scheme without optical filters and time-delay devices. The generated UWB radio frequency spectrum shows good stability when the input probe power varies from -10dBm to 6dBm, the probe wavelength varies in the whole C-band, and the bias current varies from 100mA to 240mA.
引用
收藏
页码：1587 / +
页数：2
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