A fiber-to-chip coupler based on Si/SiON cascaded tapers for Si photonic chips | Zendy

Hyundai Park | Zendy; SangGi Kim | Zendy; Jaegyu Park | Zendy; Jiho Joo | Zendy; Gyungock Kim | Zendy

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A fiber-to-chip coupler based on Si/SiON cascaded tapers for Si photonic chips

Author(s) -

Hyundai Park,

SangGi Kim,

Jaegyu Park,

Jiho Joo,

Gyungock Kim

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.029313

Subject(s) - materials science , silicon oxynitride , optics , coupling loss , silicon , waveguide , optoelectronics , silicon chip , insertion loss , power dividers and directional couplers , adiabatic process , silicon photonics , optical fiber , fiber , chip , coupled mode theory , coupling (piping) , refractive index , silicon nitride , telecommunications , physics , composite material , computer science , thermodynamics

This paper reports a fiber-to-chip coupler consisting of a silicon inverted taper and a silicon oxynitride (SiON) double stage taper, where the cascaded taper structure enables adiabatic mode transfer between a submicron silicon waveguide and a single mode fiber. The coupler, fabricated by a simplified process, demonstrates an average coupling loss of 3.6 and 4.2 dB for TM and TE polarizations, respectively, with a misalignment tolerance of ± 2.2 µm for 1 dB loss penalty.

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