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12 On/Off Optical Power Splitters Utilizing Strain-Induced Optical Waveguides in LiNbO3
Hong Sik JUNG
IEICE TRANSACTIONS on Electronics
Publication Date: 2003/05/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
strain-induced optical waveguides, strain-optic effect, optical power splitters, LiNbO3, electro-optic effect,
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12 on/off power splitters at λ=0.63µm have been produced in LiNbO3 substrates using strain-induced channel waveguides formed by magnetron deposition of surface metal films and lift-off technology. The static strain resulting from thermal expansion mismatch between the substrate and the metal films induces a localized increase in the refractive index via the strain-optic effect. On/off voltage of about 25V has been demonstrated.