Shortcut to adiabaticity in a silicon polarization splitter rotator using multi-wavelength adiabaticity engineering | Zendy

Hung-Ching Chung | Zendy; Guan-Xun Lu | Zendy; ShuoYen Tseng | Zendy

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Shortcut to adiabaticity in a silicon polarization splitter rotator using multi-wavelength adiabaticity engineering

Author(s) -

Hung-Ching Chung,

Guan-Xun Lu,

ShuoYen Tseng

Publication year - 2022

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.450230

Subject(s) - splitter , optics , extinction ratio , wavelength , polarization (electrochemistry) , bandwidth (computing) , beam splitter , fabrication , silicon , optical engineering , physics , polarization rotator , materials science , optoelectronics , birefringence , computer science , telecommunications , chemistry , medicine , laser , alternative medicine , pathology

We introduce adiabaticity engineering in coupled waveguide devices to achieve shortcuts to adiabaticity in multi-wavelength systems. By engineering the adiabaticity distribution using a single control parameter, we obtain large operating bandwidth in a compact device. Multi-wavelength adiabaticity engineering is applied to the design of silicon polarization splitter-rotators. The total length of the designed polarization splitter-rotator is 141 μm, and simulations show that the device exhibits extinction ratios above 28 dB and 16 dB for the TE 0 and TM 0 modes, respectively, with a bandwidth of 300 nm (from 1.4 μm to 1.7 μm). The fabrication tolerance of the designed device is also simulated.

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