We compare the performance of silicon-based arrayed waveguide gratings (AWGs) with star couplers of Rowland and Confocal configurations, respectively, for both TE and TM polarizations.
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Arrayed waveguide gratings (AWG) are commonly used as optical (de)multiplexers in wavelength division multiplexed (WDM) systems. It is usually built as part of a planar lightwave circuit (photonic integrated circuit), where the light coming from an input fiber first enters a multimode. Component-level simulations using varFDTD are carried out for more realistic results. It is a very powerful integrated light-dispersion technology with sig-nificant exibility for tailoring its performance to the individual.
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We design and fabricate an eight-channel thin-film lithium niobate (TFLN) arrayed-waveguide grating (AWG) and demonstrate the electro-optical tunability of the device. The transmission of the fabri-cated TFLN AWG near the central wavelength of 1550 nm is. Arrayed waveguide grating is a versatile and scalable integrated light dispersion device, which has been widely adopted in various applications, including, optical communications and optical sensing.
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Polyimide coated weak fiber Bragg grating array (PI-wFBGA) fabricated online by drawing tower overcomes the temperature limitation of conventional acrylate coating, and has broad application prospects in h.
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Planar waveguides are optical waveguides with a planar geometry that confine light propagation to a single dimension. They are often fabricated in the form of a thin transparent film with increased refractive index on some substrate, or possibly embedded between two substrate layers. FIMMPROP is probably the most widely used propagation tool for the modelling of silicon photonics: rigorous (no slowly varying approximation), fully vectorial, offering wide angle capability and very high design flexibility.
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