Silica‐tube‐based whispering gallery mode DYE lasers based on different pumping schemes

Abstract

We have investigated the properties of silica‐tube‐based whispering gallery mode dye lasers based on two different pumping schemes. A comparison of some fundamental laser properties such as lasing threshold and slope efficiency under different pumping schemes is presented in this article. Moreover, we have also studied lasing emission spectral shift induced by self‐absorption of dye materials as well as change of quality factor under different dye concentrations. The compactness, low lasing threshold and spectral tunability of the proposed opto‐fluidic ring resonator dye laser make it a good candidate for on‐chip light source and related biochemical sensing applications. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:609–614, 2017

Fluid-controlled stable single longitudinal mode microcavity laser based on an antiresonant hollow-core fiber

“…As compared to the microcavity mentioned above, optofluidic ring resonators (OFRRs) that support the circulating waveguide mode or whispering gallery mode take advantage of compact size and high Q-factors, which contribute to achieve optical device integration and low lasing threshold. The optofluidic microring lasers based on hollow-core microstructured optical fibers [19][20][21] have many advantages over other kinds of microring lasers, such as microdroplets [3], microcylinders [5], microcapillaries [22], and micro-nano fibers [23]. On the one hand, compared with the micro-nano fiber laser, it does not need additional fluid channel.…”