Azimuthally Polarized Radial Emission from a Quantum Dot Fiber Laser
Stolyarov, Alexander M.
Shum, Perry Ping
Sun, Xiao Wei
Date of Issue2016
School of Electrical and Electronic Engineering
CNRS International NTU THALES Research Alliances
We demonstrate an azimuthally polarized radial emission with zero angular momentum from a CdSe/CdZnS/ZnS quantum dot (QD) fiber laser. This fiber laser is realized by axially pumping the QD-doped gain plug infiltrated in the hollow cavity of a multilayer photonic band-gap fiber. The cylindrically symmetric radial emission is registered as a perfect ring-shaped pattern in the far field. The lasing threshold is measured to be ∼238 μJ/pulse, and the quality factor is calculated to be ∼4000. The unique radial emission from the resulting QD fiber laser offers a fundamental solution for the development of omnidirectional displays and light sources for biomedical analysis and phototherapy with minimal invasion.
© 2016 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by ACS Photonics, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/acsphotonics.6b00724].