400 MHz-bandwidth all-fiber phase modulators with ZnO coating on standard telecommunication fiber

Author

Ky, Nguyen Hong ; Limberger, H.G. ; Salath, R.P. ; Fox, G.R.

Author_Institution

Lab. for Appl. Opt., Swiss Federal Inst. of Technol., Lausanne, Switzerland

Volume

8

Issue

5

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

629

Lastpage

631

Abstract

Miniature all-fiber phase modulators with a radially symmetrical piezoelectric ZnO jacket have been characterized over a wide frequency range up to 1 GHz. Multiple radial resonances with phase shift values as high as 0.82 rad were observed in the frequency region between 20-400 MHz. A linear dependence of the phase shift on the square root of the driving power is observed up to 125 mW with a phase shift efficiency of 0.21 and 0.175 rad//spl radic/mW per centimeter fiber length at 196.5 and 399.5 MHz, respectively. The dependence of the phase shift efficiency on the modulation length is demonstrated.

Keywords

optical communication equipment; optical fibre communication; optical films; optical modulation; phase modulation; phase shifters; piezoelectric materials; piezoelectric thin films; zinc compounds; 1 GHz; 125 mW; 196.5 MHz; 20 to 400 MHz; 399.5 MHz; 400 MHz; ZnO; ZnO coating; all-fiber phase modulators; driving power; frequency region; linear dependence; miniature phase modulators; modulation length; multiple radial resonances; phase shift; phase shift efficiency; phase shift values; radially symmetrical piezoelectric jacket; square root; standard telecommunication fiber; Capacitive sensors; Coatings; Electrodes; Frequency; Optical fiber cables; Optical fibers; Optical modulation; Phase modulation; Telecommunication standards; Zinc oxide;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.491561

Filename

491561