Tilted Fiber Bragg Grating for Chirped Microwave Waveform Generation

Author

Li, Ming ; Shao, Li-Yang ; Albert, Jacques ; Yao, Jianping

Author_Institution

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

Volume

23

Issue

5

fYear

2011

fDate

3/1/2011 12:00:00 AM

Firstpage

314

Lastpage

316

Abstract

A tilted fiber Bragg grating (TFBG) as an optical spectral shaper to generate a chirped microwave waveform in a spectral-shaping and wavelength-to-time (SS-WTT) mapping system is proposed and demonstrated. The key component in the system is the TFBG, which has multiple resonant peaks with linearly increasing spacing in its transmission spectrum. By incorporating a TFBG into an SS-WTT system, a chirped microwave waveform is generated with the chirp rate determined by the tilt angle of the TFBG. A proof-of-concept experiment is carried out. Two TFBGs with tilt angles of 10 and 4 are fabricated and employed to generate two chirped microwave waveforms with chirp rates of 0.00700 and 0.05956 GHz/ps, respectively.

Keywords

Bragg gratings; chirp modulation; optical fibres; chirped microwave waveform generation; optical spectral shaper; spectral shaping; tilted fiber Bragg grating; wavelength-to-time mapping system; Chirped microwave waveform generation; tilted fiber Bragg gratings (TFBGs); wavelength-to-time mapping;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2102013

Filename

5674068