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Article title CALCULATION OF PULSE SIGNAL PROPAGATION IN BENT OPTICAL WAVEGUIDE STRUCTURES
Authors M.M. Vekshin, O.A. Culish, F.G. Khisamov
Section SECTION V. MODELLING OF COMPLEX SYSTEMS
Month, Year 07, 2012 @en
Index UDC 621.383
DOI
Abstract The calculation of optical pulse loss in bent integrated-optic waveguides is carried out. Optical pulse with short duration has significant spectral width, and it radiation losses in bent wave-guide differ from the appropriate losses of monochromatic guided wave. This fact imposes restrictions on pulse parameters and waveguide structure parameters of integrated-optic devices. Calculation method is based on conformal mapping technique, applied to wave equation in spatial-time coordinates, which allows to change bent waveguide with equivalent straight one. As a result of calculations, the ratio of propagating optical pulse power to power of monochromatic wave dependence of bent waveguide length is derived. The difference between radiation losses of pulse signal and losses of monochromatic wave are analyzed for pulses, having various durations.

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Keywords Fiber-optic communications; integrated optics; bent waveguides.
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