Broadband and Ultra-Compact Adiabatic Coupler Based on Linearly Tapered Silicon Waveguides

2025/04/29 by A. Bayoumi, Ahmed E. Khalil, Bayoumi, Ahmed +19
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Applied Physics (physics.app-ph) #FOS: Physical sciences #Optics (physics.optics) #Photonic Crystal and Fiber Optics #Photonic and Optical Devices

paper · pdf · doi:10.48550/arxiv.2504.20512

openalex publication_date 2025/04/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

2x2 couplers are crucial in many photonics applications but are often wavelength-sensitive. Alternative designs could be large, complex, or lossy. We present a broadband ultra-compact adiabatic coupler with minimal coupling variation and the least silicon taper length of 1.44 um, to our best knowledge.

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