1 November 2002 Effective refractive index change of X-cut Z-propagation Ti:LiNbO3 waveguides by laser ablation
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Abstract
Laser ablation was applied to X-cut Z-propagation Ti:LiNbO3 waveguides. The effective refractive index change of the waveguides after the ablation was measured for both TE and TM modes. The change is more sensitive to the ablation for the TE than for the TM mode. This phenomenon was confirmed by measuring the modal effective refractive indices of a nonablated and an ablated planar Ti:LiNbO3 waveguide with the m-line method. A photoelastic effect that may cause the different effective index changes of the waveguide modes after ablation is discussed.
Chii-Chang Chen, Vincent Armbruster, Henri Porte, Alain Carenco, Jean-Pierre Goedgebuer, "Effective refractive index change of X-cut Z-propagation Ti:LiNbO3 waveguides by laser ablation," Optical Engineering 41(11), (1 November 2002). https://doi.org/10.1117/1.1510764
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