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陈宏伟

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期刊论文

A Novel Composite Method for Ultra-Wideband Doublet Pulses Generation

陈宏伟Hongwei Chen Member IEEE Minghua Chen Ciyuan Qiu and Shizhong Xie Senior Member

IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 19, NO. 24, DECEMBER 15, 2007 2021,-0001,():

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摘要/描述

A novel composite approach to generate ultra-wideband (UWB) doublet pulses in optical domain through an electrical Gaussian pulse is proposed and demonstrated in this letter. Two pulses with reversed polarity generated by polarization modulation are fed into a differential group delay device and a semiconductor optical amplifier (SOA) wherein the optical pulse profile is modified. Doublet pulses are obtained after optical–electrical detection due to gain saturation and recovery mechanism in the SOA. The fractional bandwidth of doublet pulses exceeds 180%, fulfilling the UWB requirements.

版权说明:以下全部内容由陈宏伟上传于   2008年02月20日 13时54分48秒,版权归本人所有。

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