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This article is cited in 3 scientific papers (total in 3 papers)
Integrated optics
Conversion of spectral characteristics of laser radiation in periodic domain structures written by the electron-beam method in planar waveguides formed by Ti diffusion in Y-oriented LiNbO3
S. M. Shandarova, L. S. Kokhanchikb, T. R. Volkc, E. N. Savchenkova, M. V. Borodina a Tomsk State University of Control Systems and Radioelectronics
b Institute of Microelectronics Technology and High-Purity Materials RAS
c Institute of Cristallography Russian Academy of Sciences, Moscow
Abstract:
Periodic domain structures for nonlinear conversion of spectral characteristics of laser radiation in the planar Ti : LiNbO3 waveguide have been formed by the method of electron-beam writing. Domain gratings with a spatial period of 6.50 μm formed in the Y-cut plate over a wide range of accelerating voltages have been visualised by the method of second harmonic generation microscopy (SHG-microscopy) in transmitting geometry and at waveguide excitation. It is found that the domain structure written at an accelerating voltage of 10 kV in a waveguide with an exponential refractive index profile and an effective thickness of 1.75 μm is characterised by high homogeneity. It is composed of continuous domain rows and provides near-quasi-phase-matching radiation conversion at a wavelength of 1053 nm into the second harmonic for the TE0 → TE1 waveguide process.
Keywords:
periodic domain structures, diffusion planar waveguide, lithium niobate, SHG microscopy, waveguide quasi-phase-matching SHG.
Received: 24.04.2018 Revised: 21.06.2018
Citation:
S. M. Shandarov, L. S. Kokhanchik, T. R. Volk, E. N. Savchenkov, M. V. Borodin, “Conversion of spectral characteristics of laser radiation in periodic domain structures written by the electron-beam method in planar waveguides formed by Ti diffusion in Y-oriented LiNbO3”, Kvantovaya Elektronika, 48:8 (2018), 761–766 [Quantum Electron., 48:8 (2018), 761–766]
Linking options:
https://www.mathnet.ru/eng/qe16877 https://www.mathnet.ru/eng/qe/v48/i8/p761
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