Waveguides in lithium niobate fabricated by focused ultrashort laser pulses

被引:42
作者
Burghoff, Jonas
Grebing, Christian
Nolte, Stefan
Tuennermann, Andreas
机构
[1] Friedrich Schiller Univ, Inst Angew Phys, D-07743 Jena, Germany
[2] Fraunhofer Inst Angew Opt & Feinmechan, D-07745 Jena, Germany
关键词
feintosecond laser machining; lithium mobate; optical waveguides;
D O I
10.1016/j.apsusc.2007.02.148
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We report on investigations of the bulk microstructuring of lithium niobate crystals with intense femtosecond laser pulses. In different crystal cuts, optical waveguides were produced whose properties depend strongly on the processing parameters. To explore the origin of the refractive index changes, we subjected the crystals to different conditions (like temperature, illumination, etc.) while monitoring the waveguide output. This way several mechanisms for the change in refractive index could be singled out. These include the photorefractive effect, inhomogeneous ion concentrations and stress in the crystalline lattice. As an application, we demonstrate frequency doubling of 1064 nm laser radiation in a microstructured phase-matched waveguide. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:7899 / 7902
页数:4
相关论文
共 13 条
[1]   Femtosecond-irradiation-induced refractive-index changes and channel waveguiding in bulk Ti3+:Sapphire [J].
Apostolopoulos, V ;
Laversenne, L ;
Colomb, T ;
Depeursinge, C ;
Salathé, RP ;
Pollnau, M ;
Osellame, R ;
Cerullo, G ;
Laporta, P .
APPLIED PHYSICS LETTERS, 2004, 85 (07) :1122-1124
[2]   Efficient frequency doubling in femtosecond laser-written waveguides in lithium niobate [J].
Burghoff, Jonas ;
Grebing, Christian ;
Nolte, Stefan ;
Tuennermann, Andreas .
APPLIED PHYSICS LETTERS, 2006, 89 (08)
[3]   Writing waveguides in glass with a femtosecond laser [J].
Davis, KM ;
Miura, K ;
Sugimoto, N ;
Hirao, K .
OPTICS LETTERS, 1996, 21 (21) :1729-1731
[4]   Three-dimensional optical storage inside transparent materials [J].
Glezer, EN ;
Milosavljevic, M ;
Huang, L ;
Finlay, RJ ;
Her, TH ;
Callan, JP ;
Mazur, E .
OPTICS LETTERS, 1996, 21 (24) :2023-2025
[5]   Transmission electron microscopy studies of femtosecond laser induced modifications in quartz [J].
Gorelik, T ;
Will, M ;
Nolte, S ;
Tuennermann, A ;
Glatzel, U .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2003, 76 (03) :309-311
[6]   Microstructure in lithium niobate by use of focused femtosecond laser pulses [J].
Gui, L ;
Xu, BX ;
Chong, TC .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2004, 16 (05) :1337-1339
[7]   An improved procedure to calculate the refractive index profile from the measured near-field intensity [J].
Mansour, I ;
Caccavale, F .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 1996, 14 (03) :423-428
[8]   Photowritten optical waveguides in various glasses with ultrashort pulse laser [J].
Miura, K ;
Qiu, JR ;
Inouye, H ;
Mitsuyu, T ;
Hirao, K .
APPLIED PHYSICS LETTERS, 1997, 71 (23) :3329-3331
[9]   Femtosecond writing of high quality waveguides inside phosphate glasses and crystalline media using a bifocal approach [J].
Nolte, S ;
Burghoff, J ;
Will, M ;
Tünnermann, A .
COMMERCIAL AND BIOMEDICAL APPLICATIONS OF ULTRAFAST LASERS IV, 2004, 5340 :164-171
[10]   Femtosecond waveguide writing: a new avenue to three-dimensional integrated optics [J].
Nolte, S ;
Will, M ;
Burghoff, J ;
Tuennermann, A .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2003, 77 (01) :109-111