Phase stability of optical self-heterodyned microwave signals with Nd:YVO4 laser

Author

Kovacs, Gabor ; Herczfeld, Peter R. ; Berceli, Tibor

Author_Institution

Electr. & Comput. Eng. Dept., Drexel Univ., Philadelphia, PA, USA

fYear

2010

fDate

5-9 Oct. 2010

Firstpage

159

Lastpage

162

Abstract

This paper concerns the phase stability of an opto-electronic QAM-over-Fiber transmitter, which generates complex modulated radio signals directly in the optical domain. The transmitter is based on a single wavelength tunable Nd:YVO₄-LiNbO₃ electro-optic microchip laser and a simple self-heterodyne fiber optic arrangement without phase stabilization feedback. Using a narrow, 10 kHz linewidth laser and high-pass phase-noise filtering of the time-delay self-heterodyne (TDSH) arrangement provides for excellent microwave signal quality.

Keywords

electro-optical modulation; heterodyne detection; lithium compounds; microchip lasers; microwave photonics; neodymium; optical fibre filters; optical noise; optical transmitters; phase noise; quadrature amplitude modulation; radio-over-fibre; yttrium compounds; YVO₄:Nd-LiNbO₃; electrooptical microchip laser; frequency 10 kHz; high-pass phase-noise filtering; modulated radio signal generation; narrow linewidth laser; optical self-heterodyned microwave signals; optoelectronic QAM-over-fiber transmitter; phase stability; time-delay self-heterodyne fiber optic arrangement; Laser tuning; Masers; Optical fibers; Optical mixing; Optical transmitters;

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.2010.5664141

Filename

5664141