Optical filter based on two-dimensional photonic crystal surface-mode cavity in amorphous silicon-on-silica structure

• An optical filter based on side coupling between silicon wire waveguide and two-dimensional photonic crystal surface-mode cavity is presented. The design is optimized numerically by parallel three-dimensional finite-different time-domain simulations. The device is then fabricated on amorphous silicon-on-silica structure. The drop wavelength is observed around 1580 nm. The extinction ratio of the filter is larger than 10 dB and the intrinsic quality factor of the surface-mode cavity is approximately 2000.

Ämnesord

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Nyckelord

Computer simulation

Finite difference method

Optical filters

Silica

Silicon on insulator technology

Time domain analysis

Extinction ratio

Silicon wire waveguides

Silicon-on-silica structure

Optics

Optik

Publikations- och innehållstyp

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