Femtosecond second-harmonic generation in periodically poled lithium niobate waveguides written by femtosecond laser pulses

被引：29

作者：

Huang, Zhangchao ^{[1
]}

Tu, Chenghou ^{[1
]}

Zhang, Shuanggen ^{[2
]}

Li, Yongnan ^{[1
]}

Lu, Fuyun ^{[1
]}

Fan, Yaxian ^{[3
]}

Li, Enbang ^{[4
]}

机构：

[1] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

[2] Tianjin Univ Technol, Sch Elect Informat Engn, Tianjin 300384, Peoples R China

[3] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

[4] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China

来源：

OPTICS LETTERS | 2010年 / 35卷 / 06期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1364/OL.35.000877

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present in this Letter the second-harmonic generation of femtosecond pulses in double-line-written waveguides fabricated in periodically poled lithium niobate (PPLN) with femtosecond laser pulses. In a 10 mm-long sample, a normalized conversion efficiency of 12.6% W-1 cm(-2) has been achieved for 40 fs pump pulses with the wavelengths centered at 1550 nm. Simulation results show that in PPLN waveguides the FWHM of wavelength tuning curve for 40 fs pump pulses is 42 nm, which is 15 times of that for 40 ps pump pulses. (C) 2010 Optical Society of America

引用

页码：877 / 879

页数：3

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