Ultrashort and broadband silicon polarization splitter-rotator using fast quasiadiabatic dynamics | Zendy

Hung-Ching Chung | Zendy; ShuoYen Tseng | Zendy

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Ultrashort and broadband silicon polarization splitter-rotator using fast quasiadiabatic dynamics

Author(s) -

Hung-Ching Chung,

ShuoYen Tseng

Publication year - 2018

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.26.009655

Subject(s) - optics , extinction ratio , silicon , broadband , polarization (electrochemistry) , wavelength , polarization rotator , materials science , fabrication , beam splitter , physics , splitter , optoelectronics , birefringence , medicine , chemistry , alternative medicine , pathology , laser

We propose an ultrashort and broadband silicon mode-conversion polarization splitter-rotator (PSR) consisting of a taper and a Y-junction both designed by the fast quasiadiabatic dynamics (FAQUAD). The FAQUAD is used to homogeneously distribute adiabaticity over the length of the PSR, providing shortcut to adiabaticity at a shorter device length. The total length of the silicon PSR is 39.2 μm. For a wavelength range from 1.5 μm to 1.6 μm, the PSR exhibits a good performance with > 88% transmission and > 11.4 dB extinction ratio (ER). Simulations also show that the designed devices have good fabrication tolerance.

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