期刊
OPTICS LETTERS
卷 40, 期 19, 页码 4528-4531出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.40.004528
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- Ministry of Science and Technology, Taiwan (MOST) [NSC 101-2112-M-110-008-MY3, NSC 102-2221-E-110-072-MY3, NSC99-2221-E-110-097-MY3]
A degenerate four-wave-mixing (FWM) operation in the Ta2O5 submicrometer channel waveguide has been successfully demonstrated. The propagation loss of 1.5 dB/cm and total insertion loss of 5.1 dB are realized in a 12.6 mm long waveguide with inverse taper structure. The wavelength and quadratic pumping power-dependent measurements on optical transmission confirm FWMperformance and characterize the nonlinearity of waveguide. The conversion efficiency of -50 dB at coupled pump power of 40 mW is observed, suggesting that the nonlinear refractive index of Ta2O5 waveguide at 1550 nm is estimated to be 1 x 10(-14) cm(2)/W. Our primary results indicate that the Ta2O5 submicrometer channel waveguide has great potential in developing nonlinear waveguide applications. (C) 2015 Optical Society of America
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