Continuously tunable chirped microwave waveform generation using an optically pumped linear chirped fiber Bragg grating

Author

Li, Ming ; Liu, Weilin ; Yao, Jianping

Author_Institution

Microwave Photonics Res. Lab., Univ. of Ottawa, Ottawa, ON, Canada

fYear

2011

fDate

5-10 June 2011

Firstpage

1

Lastpage

4

Abstract

A novel approach to generating a chirped microwave waveform with continuously tunable chirp rate using an optically pumped linearly chirped fiber Bragg grating (LCFBG) based on a temporal interferometer is proposed and demonstrated. A theoretical analysis is performed which is verified by an experiment. A linearly chirped microwave waveform with a tunable chirp rate from 79 to 64 GHz/ns by changing the injection current of the pump laser diode (LD) from 0 to 100 mA is generated.

Keywords

Bragg gratings; interferometers; optical fibres; semiconductor lasers; waveform generators; continuously tunable chirped microwave waveform generation; optically pumped linear chirped fiber Bragg grating; pump laser diode; temporal interferometer; Chirp; Microwave filters; Optical filters; Optical pulses; Optical pumping; Yttrium barium copper oxide; Er/Yb co-doped fiber; Temporal interferometry; chirped microwave waveform generation; fiber Bragg grating (FBG); linearly chirped fiber Bragg grating (LCFBG);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International

Conference_Location

Baltimore, MD

ISSN

0149-645X

Print_ISBN

978-1-61284-754-2

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2011.5972650

Filename

5972650