Continuously tunable phase controller for microwave oscillators by using optoelectronic phase-lock loop

Author

Lin, Gong-Ru

Author_Institution

Inst. of Electro-Opt. Eng., Tatung Inst. of Technol., Taipei, Taiwan

fYear

1999

fDate

1999

Firstpage

165

Abstract

We have successfully developed a laser-diode-based optoelectronic phase-locked loop (OEPLL) for phase-tracking free-running microwave signals beyond 20 GHz. In this work, we modify the OEPLL system to demonstrate a broadband, frequency-independent, and continuously tunable microwave phase shifter. The key parameters of the OEPLL-based phase shifter (OEPLL-PS) such as the maximum phase-shifting range, tuning accuracy, linearity, insertion loss, long-term phase stability as well as switching response were investigated. We also demonstrate the precise control of relative phase change between two phase-locked microwave oscillators by using the OEPLL-PS

Keywords

circuit tuning; microwave oscillators; microwave phase shifters; microwave photonics; optical phase locked loops; continuously tunable phase controller; insertion loss; linearity; maximum phase-shifting range; microwave oscillators; optoelectronic phase-lock loop; phase shifter; phase stability; phase-tracking free-running microwave signals; relative phase change; switching response; tuning accuracy; Frequency; Insertion loss; Laser tuning; Linearity; Masers; Microwave oscillators; Phase locked loops; Phase shifters; Stability; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics, 1999. MWP '99. International Topical Meeting on

Conference_Location

Melbourne, Vic.

Print_ISBN

0-7803-5558-X

Type

conf

DOI

10.1109/MWP.1999.819676

Filename

819676