Design and Analysis of Waveguide Taper for Photonic Crystal Demultiplexer

The Photonic Crystal (PC) taper integrated between Single Mode Fiber (SMF) and photonic device for optimum power coupling for different waveguide lengths (8 μm and 0.99 μm) is designed and analyzed. Different geometries of the taper such as triangular, rectangular and Butt coupler are considered for...

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Veröffentlicht in:	SILICON 2021-11, Vol.13 (11), p.3777-3793
Hauptverfasser:	Balaji, Venkatachalam Rajarajan, Murugan, Mahalingam, Robinson, Savarimuthu, Hegde, Gopalkrishna
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Chemistry and Materials Science Communications systems Crosstalk Demultiplexers Design Efficiency Electric fields Engineering Environmental Chemistry Geometry Inorganic Chemistry Investigations Lasers Light Materials Science Optical Devices Optics Original Paper Photonic crystals Photonics Point defects Polymer Sciences Propagation Radiation Silicon Tapering Transmission efficiency Wave division multiplexing Waveguides
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Beschreibung
Zusammenfassung:	The Photonic Crystal (PC) taper integrated between Single Mode Fiber (SMF) and photonic device for optimum power coupling for different waveguide lengths (8 μm and 0.99 μm) is designed and analyzed. Different geometries of the taper such as triangular, rectangular and Butt coupler are considered for investigation. The transmission efficiencies of different waveguides based on the taper length (T L ), waveguide starting (W S ), waveguide ending (W E ), and inlet waveguide width (W I ) geometry are investigated. Triangular taper design couples the strong electric field which provides higher transmission efficiency of around >90%, spectral wavelength of a 0.2 nm, channel spacing of 0.4 nm, and crosstalk of −53 dB.
ISSN:	1876-990X 1876-9918
DOI:	10.1007/s12633-020-00678-w