Figure 5
From: Glass-on-Glass Fabrication of Bottle-Shaped Tunable Microlasers and their Applications

Strain tuning of a 42 μm diameter microlaser on an optical fibre (empty black circles) with a diameter of 20 μm and strain tuning of a 120 μm diameter microlaser on a capillary (empty red squares) with a diameter of 42 μm. Solid lines are linear fits.