Title :
Nonlinearly chirped microwave pulse generation using a spatially discrete chirped fiber Bragg grating
Author :
Wang, Chao ; Yao, Jianping
Author_Institution :
Sch. of Inf. Technol. & Eng., Univ. of Ottawa, Ottawa, ON, Canada
Abstract :
In this paper, we propose an optical approach to generating nonlinearly chirped microwave pulses based on space-to-frequency-to-time mapping using a spatially discrete chirped fiber Bragg grating (SD-CFBG). The SD-CFBG functions to perform simultaneous spectral slicing, frequency-to-time mapping and temporal shifting. The generation of a nonlinearly chirped microwave pulse with a chirp rate varying from 93.6 to 11.2 GHz/ns is experimentally demonstrated.
Keywords :
Bragg gratings; chirp modulation; microwave generation; microwave photonics; nonlinear optics; optical fibres; optical pulse generation; frequency-to-time mapping; nonlinearly chirped microwave pulse generation; simultaneous spectral slicing; spatially discrete chirped fiber bragg grating; temporal shifting; Chirp; Delay; Frequency; Microwave devices; Microwave filters; Microwave generation; Optical filters; Optical pulse generation; Optical pulse shaping; Pulse generation; Chirped pulse generation; chirped fiber Bragg grating; chromatic dispersion; microwave photonics; radar;
Conference_Titel :
Microwave Photonics, 2009. MWP '09. International Topical Meeting on
Conference_Location :
Valencia
Print_ISBN :
978-1-4244-4788-6
