High efficiency ultrashort pulse measurement with aperiodically poled lithium niobate (A-PPLN) waveguides

Author

Yang, Shang-Da ; Weiner, Andrew M. ; Parameswaran, Krishnan R. ; Fejer, Martin M.

Author_Institution

Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

Volume

1

fYear

2003

fDate

27-28 Oct. 2003

Firstpage

399

Abstract

This study reports autocorrelation measurements using quasi-phase-matched (QPM) lithium niobate waveguides, which permit much higher second harmonic generation (SHG) efficiency by confining the optical beam within a small area for a long distance. By longitudinally chirping the poling period of the waveguides, the group velocity mismatch (GVM) problem is solved by broadening the SHG bandwidth to be compatible with that of input pulses. This leads to a substantial increase in sensitivity, which may be particularly useful for measurements of ultrafast lightwave communication signals.

Keywords

chirp modulation; high-speed optical techniques; lithium compounds; optical correlation; optical harmonic generation; optical phase matching; optical waveguides; pulse measurement; SHG bandwidth broadening; aperiodically poled lithium niobate waveguides; autocorrelation measurements; group velocity mismatch; longitudinal chirping; optical beam; poling period; quasiphase-matched waveguides; second harmonic generation; ultrashort pulse measurement; Area measurement; Autocorrelation; Bandwidth; Chirp; Lithium niobate; Optical beams; Optical harmonic generation; Optical pulses; Optical waveguides; Pulse measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2003. LEOS 2003. The 16th Annual Meeting of the IEEE

ISSN

1092-8081

Print_ISBN

0-7803-7888-1

Type

conf

DOI

10.1109/LEOS.2003.1251833

Filename

1251833