Li, AZ;Yu, JB;Zhang, M;Lu, XS;Zhang, JQ;Lewis, E;Farrell, G;Wang, PF

2018

September

Ieee Photonics Technology Letters

An Yb3+-Ho(3+)Codoped Glass Microsphere Laser in the 2.0 mu m Wavelength Regions

Published

9 ()

UP-CONVERSION MICRODISK LASERS TELLURITE GLASS FIBER MICROCAVITIES SCATTERING EMISSION LIGHT IONS

30

1543

1546

In this letter, an Yb3+-Ho3+ codoped sol-gel silica microsphere lasing at around 2.0 mu m is reported. The gain microsphere is fabricated by overlaying the 1.0 mol% Yb3+-0.2 mol% Ho3+ codoped sol-gel solution on the surface of a pure silica microsphere and is then heated using a CO2 laser. Using a traditional fiber taper-microsphere coupling method, we observe the single- and multi-mode microsphere laser outputs around 2.0 mu m using a 980 nm laser diode as a pump source, with a low threshold pumping power of 14.7 mW. The ability to fabricate sol-gel codoped silica glass microlasers represents a new generation of low-threshold and compact mid-infrared laser sources for use as miniaturized photonic components for a wide range of applications including gas sensing and medical surgery.

PISCATAWAY

1041-1135

10.1109/LPT.2018.2859053