Optical properties of wide single-mode strip and grating loaded channel waveguides

Journal Article · Wed Dec 30 23:00:00 EST 2009 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2009V039N12ABEH014197· OSTI ID:21467066

Tsarev, Andrei V ^[1]

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1. Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)

New wide single-mode strip and grating loaded (SGL) channel waveguides made of silicon nitride on the oxide buffer layer of a planar silicon-on-insulator waveguide are studied. The central 10-lm-wide strip produces a multi-mode channel waveguide and diffraction gratings with a period 0.6 lm built on the structure edges produce mode-dependent additional losses due to radiation to the surrounding medium. The optical properties of these waveguides are discussed using the results of a three-dimensional numerical simulation by the FDTD and BPM methods. It is shown that a wide SGL waveguide is quasi-single-mode one because it has a small propagation loss ({approx} 0.3 dB cm{sup -1}) for the fundamental mode and a high (up to -20 dB cm{sup -1}) loss for the higher order modes. The new SGL waveguides are CMOS compatible and can become basic for fabricating new photonic elements, including tunable optical filters and multi-plexers based on the multireflector technology. (waveguides)

• OSTI ID: 21467066
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 12 Vol. 39; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BUFFERS
COMPUTERIZED SIMULATION
DIFFRACTION GRATINGS
ELEMENTS
FILTERS
LAYERS
NITRIDES
NITROGEN COMPOUNDS
OPTICAL FILTERS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PNICTIDES
SEMIMETALS
SILICON
SILICON COMPOUNDS
SILICON NITRIDES
SIMULATION
THREE-DIMENSIONAL CALCULATIONS
WAVEGUIDES