Electrooptic phase tracking of microwave signals beyond 18.5 GHz using an integrated electrooptic modulator as an optoelectronic harmonic mixer in a phase lock loop

Author

Pan, Ci-Ling ; Lin, Gong-Ru ; Chyou, Dean-Yu ; Wu, Hsiao-Hua

Author_Institution

Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

4

Issue

4

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

115

Lastpage

117

Abstract

We demonstrate electrooptic phase tracking of microwave signals beyond 18.5 GHz using a gain-switched laser diode as the optical clock. The key element of this system is a fiber-pigtailed integrated-optic Mach-Zehnder modulator (IOM). The IOM functions as an optoelectronic harmonic mixer in a phase lock loop. The conversion loss of the OEHM is 66 dB. The phase error and the single sideband phase noise density of the phase-locked 18.5 GHz signal is 5.6/spl times/10/sup /spl minus/5/ rad//spl radic/(Hz) and -54 dBc/Hz, respectively.<>

Keywords

electro-optical devices; integrated optics; laser beam applications; microwave links; mixers (circuits); optical links; optical modulation; optoelectronic devices; phase-locked loops; synchronisation; tracking; 18.5 GHz; 66 dB; PLL; conversion loss; electrooptic phase tracking; fiber-pigtailed configuration; gain-switched laser diode; integrated electrooptic modulator; integrated-optic Mach-Zehnder modulator; microwave signals; optical clock; optoelectronic harmonic mixer; phase error; phase lock loop; single sideband phase noise density; Clocks; Electrooptic modulators; High speed optical techniques; Integrated optics; Lasers and electrooptics; Microwave oscillators; Optical fiber communication; Optical losses; Optical modulation; Voltage-controlled oscillators;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.282577

Filename

282577