High-power wavelength-tunable photonic-crystal-fiber-based oscillator-amplifier-frequency-shifter femtosecond laser system and its applications for material microprocessing

被引：102

作者：

Liu, B. -W ^{[1
]}

Hu, M. -L. ^{[1
]}

Fang, X. -H. ^{[1
]}

Wu, Y. -Z ^{[1
]}

Song, Y-J. ^{[1
]}

Chai, L. ^{[1
]}

Wang, C-Y ^{[1
]}

Zheltikov, A. M. ^{[2
]}

机构：

[1] Tianjin Univ, Ultrafast Laser Lab, Sch Precis Instruments & Optoelect Engn, Key Lab Optoelect Informat Tech Sci, Tianjin 300072, Peoples R China

[2] Moscow MV Lomonosov State Univ, Dept Phys, Ctr Int Laser, Moscow 119992, Russia

来源：

LASER PHYSICS LETTERS | 2009年 / 6卷 / 01期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金; 俄罗斯基础研究基金会;

关键词：

photonic-crystal fibers; ultrafast optics; femtosecond laser technologies; STOKES-RAMAN SCATTERING; CHIRPED-PULSE AMPLIFICATION; MICROSTRUCTURE OPTICAL-FIBERS; SUPERCONTINUUM GENERATION; CONTINUUM GENERATION; SOLITON OUTPUT; LIGHT-SOURCE; ENERGY; MICROSPECTROSCOPY; DISPERSION;

D O I：

10.1002/lapl.200810084

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A high-power wavelength-tunable femtosecond fiber laser source is developed based on photonic-crystal fiber technology. Laser ocillator and amplifier stages in this system employ diode-pumped ytteribum-doped single-polarization large-mode-area photonic-crystal fibers in a stretcher-free configuration, delivering laser pulses with an average power of 10.4 W, a pulse width of 52 fs, and a peak power of 4 MW at a repetition rate of 50 MHz after pulse compression. Nonlinear transformation of such laser pulse in a highly nonlinear photonic-crystal fiber yields light pulses smoothly tunable within the range of wavelengths from 1.0 to 1.4 mu m and allows the generation of supercontinuum stretching from 450 to at least 1750 nm. We report experiments on silicon microprocessing and chromium nanofilm pattering at a high repetition rate, demonstrating the potential of the developed fiber-laser source for fast micromachining, micro-fabrication and microprocessing.

引用

页码：44 / 48

页数：5

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