Quasi-velocity-matched electrooptic phase modulator for the synthesis of ultrashort optical pulses

Author

Guo, Feng-Zhen ; Yu, Chang-Tai ; Chen, Lei ; Kobayashi, Tetsuro ; Chen, Ying

Author_Institution

Dept. of Inf. & Electron. Eng., Zhejiang Univ., Hangzhou, China

Volume

33

Issue

5

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

879

Lastpage

882

Abstract

We report a quasi-velocity-matched electrooptic (EO) phase modulator in LiTaO₃ with periodic domain inversion. It is suitable for deep modulation at high frequency and can be used to generate ultra-wide sideband signals for forming ultrashort optical pulses. In experiments, phase modulation with a modulation index of 57 rad has been successfully obtained at 16.25 GHz, and thereby optical sidebands extending over as wide as 1.85 THz (FWHM) have been attained. The sidebands produced are broad enough to form subpicosecond pulses using the chirping-compression method

Keywords

chirp modulation; electro-optical modulation; high-speed optical techniques; lithium compounds; optical materials; optical pulse compression; phase modulation; 1.85 THz; 16.25 GHz; LiTaO₃; chirping-compression method; modulation index; optical sidebands; periodic domain inversion; phase modulation; pulse synthesis; quasi-velocity-matched electrooptic phase modulator; subpicosecond pulses; ultra-wide sideband signals; ultrashort optical pulses; Electrooptic modulators; Frequency; Laser mode locking; Optical modulation; Optical pulse generation; Optical pulses; Optical resonators; Phase modulation; Power lasers; Pulse modulation;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.572164

Filename

572164