Annealed proton-exchanged waveguide quasi-phase-matched second-harmonic generation devices in 8 mol % MgO-doped congruent LiTaO3 crystal

Annealed proton-exchanged waveguide quasi-phase-matched second-harmonic generation devices in 8 mol % MgO-doped congruent LiTaO3 crystal

Heavily (8 mol %) MgO-doped congruent LiTaO3 (MgO:cLT) crystal has wider transparency range and higher photorefractive damage resistance than LiNbO3 or non-doped LiTaO3 crystal. We examined the possibility of forming annealed proton-exchanged (APE) waveguides with various conditions. We obtained goo...

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Veröffentlicht in:Japanese Journal of Applied Physics 2015-10, Vol.54 (10)
Hauptverfasser: Oka, Toshiharu, Suhara, Toshiaki
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description Heavily (8 mol %) MgO-doped congruent LiTaO3 (MgO:cLT) crystal has wider transparency range and higher photorefractive damage resistance than LiNbO3 or non-doped LiTaO3 crystal. We examined the possibility of forming annealed proton-exchanged (APE) waveguides with various conditions. We obtained good quality APE waveguides with the propagation loss 0.7 dB/cm for 1.064 µm wavelength and demonstrated a prototype waveguide quasi-phase-matched second-harmonic generation device of 56%/W normalized efficiency for the first time in MgO:cLT crystal.
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J. Appl. Phys</addtitle><date>2015-10</date><risdate>2015</risdate><volume>54</volume><issue>10</issue><issn>0021-4922</issn><eissn>1347-4065</eissn><coden>JJAPB6</coden><abstract>Heavily (8 mol %) MgO-doped congruent LiTaO3 (MgO:cLT) crystal has wider transparency range and higher photorefractive damage resistance than LiNbO3 or non-doped LiTaO3 crystal. We examined the possibility of forming annealed proton-exchanged (APE) waveguides with various conditions. We obtained good quality APE waveguides with the propagation loss 0.7 dB/cm for 1.064 µm wavelength and demonstrated a prototype waveguide quasi-phase-matched second-harmonic generation device of 56%/W normalized efficiency for the first time in MgO:cLT crystal.</abstract><pub>The Japan Society of Applied Physics</pub><doi>10.7567/JJAP.54.100304</doi><tpages>3</tpages></addata></record>
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title Annealed proton-exchanged waveguide quasi-phase-matched second-harmonic generation devices in 8 mol % MgO-doped congruent LiTaO3 crystal
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