| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Single-Mode Propagation and Highly Efficient Second Harmonic Generation in Periodically Poled MgO-Doped LiNbO3 on Insulator Rib Waveguide |
| ZHOU Yu-Jie, FENG Li-Qun, SUN Jun-Qiang** |
| Wuhan National Laboratory for Optoelectronics, College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074 |
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Abstract Theoretical studies on mode propagation and second harmonic generation in periodically poled MgO-doped LiNbO3 on an insulator (PPLNOI) rib waveguide are presented. With a special design, the waveguide can simultaneously support the single-mode propagation of both a pump wave (1550 nm) and a second harmonic wave (775 nm). As a result of the strong confinement and intensive nonlinear effect in the PPLNOI rib waveguide, the calculated results indicate that a second-harmonic generation conversion efficiency of 400%W?1?cm?2 can be achieved at a wavelength of 1550 nm, almost 2.6 times higher than the widely applied reverse proton-exchanged waveguide (150%W?1?cm?2).
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Received: 12 March 2012
Published: 31 July 2012
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| PACS: |
42.79.Nv
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(Optical frequency converters)
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42.70.Mp
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(Nonlinear optical crystals)
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42.82.Et
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(Waveguides, couplers, and arrays)
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