Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - UV integrated optics devices based on beta-barium borate
AU - Poberaj, Gorazd
AU - Degl'Innocenti, Riccardo
AU - Medrano, Carolina
AU - Günter, Peter
PY - 2009/5
Y1 - 2009/5
N2 - We report on our recent progress in development of ultraviolet (UV) integrated optics devices based on beta-barium borate (BBO). Planar optical waveguides with a thickness of a few micrometers have been formed by the implantation of He+ ions with energies of around 2 MeV. Two alternative methods based on the femtosecond-laser assisted micromachining and lithographic structuring for the fabrication of ridge-type channel optical waveguides in implanted BBO crystals have been developed, and the transmission properties of the obtained waveguides have been studied. We demonstrate a big potential of the fabricated channel waveguides for the second harmonic generation of continuous-wave deep-UV laser light with a power of the order of 1 mW, exploiting the nonlinear optical properties of BBO crystal. In addition, a low-voltage electro-optic waveguide modulator for the deep-UV light (half-wave voltage times electrode length Vπ × l = 43 V cm at 257 nm) was realized for the first time.
AB - We report on our recent progress in development of ultraviolet (UV) integrated optics devices based on beta-barium borate (BBO). Planar optical waveguides with a thickness of a few micrometers have been formed by the implantation of He+ ions with energies of around 2 MeV. Two alternative methods based on the femtosecond-laser assisted micromachining and lithographic structuring for the fabrication of ridge-type channel optical waveguides in implanted BBO crystals have been developed, and the transmission properties of the obtained waveguides have been studied. We demonstrate a big potential of the fabricated channel waveguides for the second harmonic generation of continuous-wave deep-UV laser light with a power of the order of 1 mW, exploiting the nonlinear optical properties of BBO crystal. In addition, a low-voltage electro-optic waveguide modulator for the deep-UV light (half-wave voltage times electrode length Vπ × l = 43 V cm at 257 nm) was realized for the first time.
KW - Beta-barium borate (BBO)
KW - Electro-optic modulation
KW - Integrated optics
KW - Second harmonic generation
KW - UV light
KW - Waveguides
U2 - 10.1016/j.optmat.2007.12.020
DO - 10.1016/j.optmat.2007.12.020
M3 - Journal article
AN - SCOPUS:64749106342
VL - 31
SP - 1049
EP - 1053
JO - Optical Materials
JF - Optical Materials
SN - 0925-3467
IS - 7
ER -