Fabrication and characterization of chalcogenide glass photonic crystal waveguides
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概要
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We report on the fabrication of chalcogenide glass (Ag-As_2Se_3) photonic crystal waveguides and the first detailed characterization of the linear and nonlinear optical properties. The waveguides, fabricated by e-beam lithography and ICP etching exhibit typical transmission spectra of photonic crystal waveguides, and exhibit high optical nonlinearity. Nonlinear phase shift of 1.5π through self-phase modulation is observed at 0.78W input peak power in a 400μm long device. The effective nonlinear parameter γ_eff estimated from this result reaches 2.6×10^4 W^-1m^-1 Fourwave mixing is also observed in the waveguide, while two-photon absorption at optical communication wavelengths is sufficiently small and the corresponding figure of merit is larger than 11.
- Optical Society of Americaの論文
- 2009-12-07
Optical Society of America | 論文
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