Silicon-waveguide-coupled high-Q chalcogenide microspheres | Zendy

Daniel H. Broaddus | Zendy; Mark A. Foster | Zendy; Imad Agha | Zendy; Jacob T. Robinson | Zendy; Michal Lipson | Zendy; Alexander L. Gaeta | Zendy

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Silicon-waveguide-coupled high-Q chalcogenide microspheres

Author(s) -

Daniel H. Broaddus,

Mark A. Foster,

Imad Agha,

Jacob T. Robinson,

Michal Lipson,

Alexander L. Gaeta

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

ISSN - 1094-4087

DOI - 10.1364/oe.17.005998

Subject(s) - materials science , resonator , silicon , chalcogenide , optoelectronics , resistive touchscreen , refractive index , chalcogenide glass , optics , waveguide , q factor , physics , electrical engineering , engineering

We fabricate high-Q arsenic triselenide glass microspheres through a three-step resistive heating process. We demonstrate quality factors greater than 2 x 10(6) at 1550 nm and achieve efficient coupling via a novel scheme utilizing index-engineered unclad silicon nanowires. We find that at powers above 1 mW the microspheres exhibit high thermal instability, which limits their application for resonator-enhanced nonlinear optical processes.

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