Abstract: This letter presents a novel antenna design for generating multi-mode Orbital Angular Momentum (OAM) waves through single-mode array multiplexing. The design consists of four single-mode ...

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Alistair Berg / Getty Images Single filers are taxpayers who file their federal income tax returns with the Internal Revenue Service (IRS) under the status “single.” This filing status is used ...

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Abstract: We demonstrate the fabrication of a high-quality fiber Bragg grating (FBG) in a large mode area passive double-clad fiber (DCF) using femtosecond laser multi-layer line-by-line inscription.

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