Azimuthally Polarized Radial Emission from a Quantum Dot Fiber Laser

TitleAzimuthally Polarized Radial Emission from a Quantum Dot Fiber Laser
Publication TypeJournal Article
Year of Publication2016
AuthorsZhang, N, Liu, H, Stolyarov, AM, Zhang, T, Li, K, Shum, PPing, Fink, Y, Sun, XWei, Wei, L
JournalAcs Photonics
Pagination2275 - 2279
Date Published2016/12//
ISBN Number2330-4022
Keywordsfiber laser, gain, optofluidic lasers, photonic band-gap fiber, quantum dots, stimulated-emission

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 similar to 238 mu J/pulse, and the quality factor is calculated to be similar to 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.

Short TitleACS Photonics