scholarly journals Recoverable and rewritable waveguide beam splitters fabricated by tailored femtosecond laser writing of lithium tantalate crystal

2022 ◽  
Vol 145 ◽  
pp. 107500
Author(s):  
Bo Wu ◽  
Bin Zhang ◽  
Weijie Liu ◽  
Qingming Lu ◽  
Lei Wang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Lithium Tantalate ◽  
Laser Writing ◽  
Beam Splitters

scholarly journals Beam Splitters Fabricated by Nonlinear Focusing of Femtosecond Laser Writing in Pure YAG Crystal

2021 ◽  
Vol 9 ◽  
Author(s):  
Pengfei Wu ◽  
Senchi Yang ◽  
Yingying Ren ◽  
Hongliang Liu
Keyword(s):  
Femtosecond Laser ◽  
Propagation Loss ◽  
Direct Writing ◽  
Laser Writing ◽  
Cross Sectional ◽  
Beam Splitters ◽  
Novel Structure ◽  
Coupling System ◽  
Fs Laser ◽  
Nonlinear Focusing

We report on the fabrication of waveguides and beam splitters in pure YAG crystals by femtosecond laser direct writing (FLDW). During the femtosecond laser writing process, a positive refractive index is induced through the nonlinear focusing above the focus position, resulting in an unusual guiding cross-sectional configuration. The supported guiding modes at 632.8 nm are measured and analyzed using the end–face coupling system. The propagation loss can be as low as 1.9 dB/cm for the single-line waveguide. Different from the geometry of the traditional fs-laser modified area, this novel structure might offer a new approach in the quest toward integrated photonics.

Femtosecond Laser Writing of Lithium Tantalate Crystals for Waveguide Fabrication

2018 ◽  
Author(s):  
Hongsheng Song ◽  
Chen Cheng ◽  
Ziqi Li ◽  
Carolina Romero ◽  
Javier R. Vázquez de Aldana ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Lithium Tantalate ◽  
Laser Writing ◽  
Waveguide Fabrication

scholarly journals Tunable violet radiation in a quasi-phase-matched periodically poled stoichiometric lithium tantalate waveguide by direct femtosecond laser writing

2020 ◽  
Vol 19 ◽  
pp. 103373
Author(s):  
LingQi Li ◽  
Bin Zhang ◽  
Carolina Romero ◽  
Javier R. Vázquez de Aldana ◽  
Lei Wang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Lithium Tantalate ◽  
Laser Writing ◽  
Periodically Poled ◽  
Violet Radiation

scholarly journals Femtosecond Laser Writing of Optical-Lattice-Like Cladding Structures for Three-Dimensional Waveguide Beam Splitters in LiNbO3Crystal

2016 ◽  
Vol 34 (15) ◽  
pp. 3587-3591 ◽  
Author(s):  
Jinman Lv ◽  
Yazhou Cheng ◽  
Javier R. Vazquez de Aldana ◽  
Xiaotao Hao ◽  
Feng Chen
Keyword(s):  
Femtosecond Laser ◽  
Optical Lattice ◽  
Three Dimensional ◽  
Laser Writing ◽  
Beam Splitters

scholarly journals Three-dimensional dielectric crystalline waveguide beam splitters in mid-infrared band by direct femtosecond laser writing

2014 ◽  
Vol 22 (25) ◽  
pp. 31293 ◽  
Author(s):  
Ruiyun He ◽  
Irene Hernández-Palmero ◽  
Carolina Romero ◽  
Javier R. Vázquez de Aldana ◽  
Feng Chen
Keyword(s):  
Femtosecond Laser ◽  
Three Dimensional ◽  
Infrared Band ◽  
Laser Writing ◽  
Mid Infrared ◽  
Beam Splitters

scholarly journals Low-repetition rate femtosecond laser writing of optical waveguides in KTP crystals: analysis of anisotropic refractive index changes

2015 ◽  
Vol 23 (12) ◽  
pp. 15343 ◽  
Author(s):  
Muhammad Ali Butt ◽  
Huu-Dat Nguyen ◽  
Airán Ródenas ◽  
Carolina Romero ◽  
Pablo Moreno ◽  
...  
Keyword(s):  
Refractive Index ◽  
Femtosecond Laser ◽  
Repetition Rate ◽  
Optical Waveguides ◽  
Laser Writing ◽  
Index Changes

scholarly journals Electro–optical tunable waveguide embedded multiscan Bragg gratings in lithium niobate by direct femtosecond laser writing

2014 ◽  
Vol 22 (19) ◽  
pp. 23339 ◽  
Author(s):  
Sebastian Kroesen ◽  
Wolfgang Horn ◽  
Jörg Imbrock ◽  
Cornelia Denz
Keyword(s):  
Lithium Niobate ◽  
Femtosecond Laser ◽  
Bragg Gratings ◽  
Laser Writing ◽  
Tunable Waveguide

scholarly journals Mid-infrared waveguiding in three-dimensional microstructured optical waveguides fabricated by femtosecond-laser writing and phosphoric acid etching

2020 ◽  
Vol 8 (3) ◽  
pp. 257 ◽  
Author(s):  
Jinman Lv ◽  
Binbin Hong ◽  
Yang Tan ◽  
Feng Chen ◽  
Javier Rodríguez Vázquez de Aldana ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Phosphoric Acid ◽  
Optical Waveguides ◽  
Three Dimensional ◽  
Acid Etching ◽  
Laser Writing ◽  
Mid Infrared ◽  
Phosphoric Acid Etching

Optical spectroscopy in channel waveguides made in Nd:YAG crystals by femtosecond laser writing

2008 ◽  
Vol 128 (5-6) ◽  
pp. 754-756 ◽  
Author(s):  
G.A. Torchia ◽  
C. Méndez ◽  
L. Roso ◽  
J.O. Tocho
Keyword(s):  
Femtosecond Laser ◽  
Optical Spectroscopy ◽  
Laser Writing ◽  
Channel Waveguides ◽  
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