Characterization of ultrashort optical pulses with third-harmonic-generation based triple autocorrelation

Author

Liu, Tzu-Ming ; Huang, Yin-Chieh ; Chern, Gia-Wei ; Lin, Kung-Hsuan ; Hung, Yu-Chueh ; Lee, Chih-Jie ; Sun, Chi-Kuang

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

38

Issue

11

fYear

2002

fDate

11/1/2002 12:00:00 AM

Firstpage

1529

Lastpage

1535

Abstract

We present a method to obtain complete information of femtosecond pulses. By measuring triple-optical autocorrelation directly with third-harmonic generation, without spectral information, a temporal pulse shape can be obtained by analytical calculation without direction-of-time ambiguity. Combining the resulting optical pulse shape with its corresponding optical spectrum, the exact phase and color variations in time can all be recovered with a Gerchberg-Saxton algorithm through an iterative calculation with an O(n) complexity.

Keywords

high-speed optical techniques; iterative methods; laser beams; optical correlation; optical harmonic generation; GaN; Gerchberg-Saxton algorithm; Mg₂SiO₄:Cr; color variations; direction-of-time ambiguity; exact phase; femtosecond pulses; iterative calculation; optical pulse shape; optical spectrum; temporal pulse shape; third-harmonic-generation; triple autocorrelation; ultrashort optical pulses; Autocorrelation; Biomedical measurements; Optical harmonic generation; Optical pulse generation; Optical pulse shaping; Optical pulses; Phase measurement; Pulse measurements; Shape measurement; Ultrafast optics;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2002.804268

Filename

1043352