Polarisation rotation Bragg grating with high diffraction efficiency using Si waveguide top surface groove grating | Zendy

Okayama H. | Zendy; Onawa Y. | Zendy; Shimura D. | Zendy; Yaegashi H. | Zendy; Sasaki H. | Zendy

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Polarisation rotation Bragg grating with high diffraction efficiency using Si waveguide top surface groove grating

Author(s) -

Okayama H.,

Onawa Y.,

Shimura D.,

Yaegashi H.,

Sasaki H.

Publication year - 2015

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2015.2639

Subject(s) - optics , groove (engineering) , grating , materials science , blazed grating , fiber bragg grating , rotation (mathematics) , diffraction grating , waveguide , diffraction efficiency , diffraction , optoelectronics , physics , optical fiber , computer science , metallurgy , artificial intelligence

Polarisation‐independent Bragg grating wavelength filter with high diffraction efficiency using silicon waveguide is reported. An antisymmetric grating structure with groove at the top surface of the waveguide is used to generate the polarisation rotation Bragg diffraction. The concept was verified by simulation. Polarisation‐independent bandpass filter consisting of 3 dB coupler and polarisation rotation Bragg diffraction was experimentally demonstrated.

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