Research on measurement of frequency shift characteristics based on LiNbO3 waveguide electro-optic intensity modulator

Author

Zhou, Huijuan ; Meng, Zhou ; Yao, Qiong ; Liao, Yi

Author_Institution

Coll. of Optoelectron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

fYear

2008

fDate

7-9 Nov. 2008

Firstpage

1

Lastpage

5

Abstract

High-speed and wide-band LiNbO₃ waveguide electro-optic intensity modulator has drawn great attention in the field of optical fiber communication and sensor. This paper reports the research results on the measurement of frequency shift characteristics of Mach-Zehnder electro-optic intensity modulator. Two measurement methods of frequency shift characteristics for high and low frequency modulations lead to different results, which are studied in theory and experiment. The realization of a multi-wavelength optical source based on Mach-Zehnder electro-optic intensity modulator has been introduced. The technique to reach the maximum intensity for interesting shift frequency, particularly for heterodyne detection of Brillouin distributed optical fiber sensing, has been given.

Keywords

Mach-Zehnder interferometers; electro-optical modulation; fibre optic sensors; frequency measurement; frequency modulation; high-speed optical techniques; intensity modulation; light sources; lithium compounds; optical variables measurement; optical waveguide components; Brillouin distributed optical fiber sensing; LiNbO₃; Mach-Zehnder electro-optic intensity modulator; Mach-Zehnder interferometer; frequency shift characteristics measurement; high-speed modulator; multiwavelength optical source; waveguide electro-optic intensity modulator; wide-band modulator; Electrooptic devices; Electrooptic modulators; Frequency measurement; Frequency modulation; Intensity modulation; Optical fiber communication; Optical fiber sensors; Optical waveguides; Sensor phenomena and characterization; Wideband; Brillouin; Electro-optic intensity modulator; LiNbO3; frequency shift;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Sensors Conference, 2008. APOS '08. 1st Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-2131-2

Electronic_ISBN

978-1-4244-2132-9

Type

conf

DOI

10.1109/APOS.2008.5226311

Filename

5226311