Experimental research on frequency doubling in periodically poled KTiOPO4 waveguide fabricated by femtosecond laser | Zendy

Jue Wang | Zendy; Chenghou Tu | Zendy; Shuanggen Zhang | Zendy; LU Fu-yun | Zendy

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Experimental research on frequency doubling in periodically poled KTiOPO4 waveguide fabricated by femtosecond laser

Author(s) -

Jue Wang,

Chenghou Tu,

Shuanggen Zhang,

LU Fu-yun

Publication year - 2010

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.59.307

Subject(s) - femtosecond , materials science , fabrication , waveguide , laser , optics , quasi phase matching , wavelength , second harmonic generation , optoelectronics , femtosecond pulse , phase matching , lithium niobate , harmonic , physics , medicine , alternative medicine , pathology , quantum mechanics

We present in this paper the fabrication and characterization of type II waveguide in c-cut periodically poled KTiOPO4 crystal. The waveguide was fabricated by using a femtosecond laserand the fabrication process was optimized. In our experiments single mode propagation was observed at optimal waveguide width of 145 μm and quasi-phase matching wavelength of 1064 nm. The second-harmonic conversion efficiency of 398% can be achieved.

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