Stokes and anti-Stokes Raman scatterings from frequency comb lines in poly-crystalline aluminum nitride microring resonators | Zendy

Hojoong Jung | Zendy; Zheng Gong | Zendy; Xianwen Liu | Zendy; Xiang Guo | Zendy; ChangLing Zou | Zendy; Hong X. Tang | Zendy

Open Access

Stokes and anti-Stokes Raman scatterings from frequency comb lines in poly-crystalline aluminum nitride microring resonators

Author(s) -

Hojoong Jung,

Zheng Gong,

Xianwen Liu,

Xiang Guo,

ChangLing Zou,

Hong X. Tang

Publication year - 2019

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.27.022246

Subject(s) - raman spectroscopy , raman scattering , resonator , materials science , optics , coherent anti stokes raman spectroscopy , optoelectronics , physics

In optical microresonators, stimulated Raman scattering (SRS) competes with four-wave mixing process and impact Kerr comb generation. Here, we demonstrate Raman frequency combs in poly-crystalline aluminum nitride (AlN) microring resonators. The Raman shifts at transverse-electric (TE) and transverse-magnetic (TM) polarizations are characterized from AlN straight waveguides using backscattering geometries. In poly-crystalline AlN microring resonators, the frequency matching of cavity resonances with broad Raman gain enhances the SRS and leads to Raman-assisted frequency combs. As a result, comb lines near Raman scattering regions of AlN are generated.

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