Highly-tunable optoelectronic microwave oscillator

Author

Pillet, Gregoire ; Morvan, Loïc ; Dolfi, Daniel ; Huignard, Jean-Pierre

Author_Institution

Thales Res. & Technol. - France, Palaiseau, France

fYear

2010

fDate

5-9 Oct. 2010

Firstpage

313

Lastpage

316

Abstract

We report on a tunable optoelectronic microwave oscillator stabilized with an optical frequency-locked loop. The microwave signal is generated by heterodyning two cross-polarized optical waves. Its frequency is then locked with an electrooptical frequency discriminator realized with a 100 m long optical fiber delay line. The tunability is obtained by thanks to a birefringent optical phase modulator and a polarizer. We implemented this principle with a dual frequency laser at 1.5 μm and we obtained a chirp over a 1 GHz bandwidth with a 1 kHz precision and an average chirp rate of 500 MHz/ms.

Keywords

birefringence; chirp modulation; electro-optical modulation; microwave generation; microwave oscillators; microwave phase shifters; microwave photonics; optical communication equipment; optical delay lines; optical fibre communication; optical fibre polarisation; optical phase locked loops; optical phase shifters; optical polarisers; optical tuning; phase modulation; average chirp rate; birefringent optical phase modulator; cross-polarized optical waves; dual frequency laser; electrooptical frequency discriminator; heterodyning; high-bandwidth optical microwave phase-shifter; highly-tunable optoelectronic microwave oscillator; microwave signal generation; optical fiber delay line; optical frequency-locked loop; polarizer; size 10 m; wavelength 1.5 mum; Frequency modulation; Masers; Microwave oscillators; Optical fibers; Optical filters; Optical polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics (MWP), 2010 IEEE Topical Meeting on

Conference_Location

Montreal, QC

Print_ISBN

978-1-4244-7824-8

Type

conf

DOI

10.1109/MWP.2010.5664188

Filename

5664188