Title :
A novel method for generating highly extinctive optical pulse
Author :
Bin, Li ; Linhai, Liu ; Tao, Fang
Author_Institution :
Nat. Eng. Res. Center, Commun. Software & ASIC, Shijiazhuang, China
Abstract :
A novel method for generating highly extinctive optical pulse is proposed in this paper. The continuous-wave (CW) light is modulated by an electrooptic phase modulator, and then modulated by a Mach-Zehnder intensity modulator in which the nonlinear chirp and undesirable positive or negative chirp components are sufficiently restrained. The modulated light is compressed into pulse by an equivalent chirped fiber Bragg grating (ECFBG). The theory illustration and simulation are presented that ultra-short optical pulse with high extinction ratio larger than 30dB and tiny pedestal can be generated in this way, and an experiment based on fabricated ECFBG is shown.
Keywords :
Bragg gratings; electro-optical modulation; intensity modulation; optical pulse compression; Mach-Zehnder intensity modulator; continuous-wave light; electrooptic phase modulator; equivalent chirped fiber Bragg grating; nonlinear chirp; optical pulse; Chirp modulation; Continuous phase modulation; Electrooptic modulators; Intensity modulation; Optical modulation; Optical pulse generation; Optical pulses; Phase modulation; Pulse compression methods; Pulse modulation; High Extinction Ratio; Optical communication; Pulse Compression; Ultra-shot Optical Pulse;
Conference_Titel :
Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-2423-8
Electronic_ISBN :
978-1-4244-2424-5
DOI :
10.1109/ICCS.2008.4737380
